Make the cable feature speak English like the rest of the interface

English has been the source language of the program for a while now
(upstream: "Make English the source language ..."), the cable feature
came in with French ones: about 200 translatable strings over 30 files,
the two settings pages built from .ui files, four comments and one test
which asserted the old wording (blocking review comment by ispyisail).

The wording follows what the code base already uses where it exists:
Plant (=) and Location (+) as qetinformation.cpp names those element
information, Designation for the field the cable form calls its BMK,
Length, Sheet for folio, Automatic numbering, Cross-reference, and Right
aligned / Centred / Left aligned the way cabletextformatdialog.cpp
already spells the three alignment entries.

Two things are more than a word-for-word swap:

- xrefpropertieswidget.cpp:291 wrote the label of the master field on
  every type change with a hardcoded tr("Maitre"), so the English
  "Master" coming from the .ui was overwritten for every type, cable or
  not: a real bug next to being French. The wording now comes back from
  the .ui and only a cable renames the field to "Text:", so the two
  cannot drift apart again.

- tst_cabletypelist kept asserting that a new catalogue is *labelled*
  in French. That label line is the translated header and reads English
  now. The test still reads files with French headers on purpose:
  headerAliasMap() keeps the five old French labels as aliases next to
  the English ones, so catalogues written by earlier builds, including
  the one the reviewer reads her own types from, keep loading.

The .ts files are deliberately not regenerated here. Upstream
regenerates them on master, as it did for the language change itself,
and a translation is keyed on the source string: while the sources were
French a German user saw French in the cable dialogs, and an English
source string with no translation yet shows as it is.

Build clean, ctest 92/93, the one failure being the pre-existing
headless tst_menubarkeyboard.

sources/autoNum/ui/selectautonumw.cpp

@@ -338,11 +338,11 @@ void SelectAutonumW::setSingleRuleMode(bool single)
 		//only shown when there is really a rule to take away -- see
 		//setRuleRemovable.
 	if (single && !m_rule_remove_pb) {
-		m_rule_remove_pb = new QPushButton(tr("Supprimer la règle"), this);
+		m_rule_remove_pb = new QPushButton(tr("Delete the rule"), this);
 		m_rule_remove_pb->setToolTip(tr(
-			"Supprimer la règle de numérotation des câbles : les câbles "
-			"sont à nouveau numérotés comme avant, et la question d'en "
-			"définir une revient au prochain dessin."));
+			"Delete the cable numbering rule: cables are "
+			"numbered again as before, and the question of "
+			"defining one comes back on the next drawing."));
 		m_rule_remove_pb->setObjectName(QStringLiteral("m_rule_remove_pb"));
 		if (ui->m_definition_groupe && ui->m_definition_groupe->layout()) {
 			ui->m_definition_groupe->layout()->addWidget(m_rule_remove_pb);
@@ -457,24 +457,24 @@ void SelectAutonumW::on_buttonBox_clicked(QAbstractButton *button)
 			{
 				QMessageBox::information (
 							this,
-							tr("Câble Autonumérotation",
+							tr("Cable Auto Numbering",
 							   "title window"),
-							tr("C'est ici que vous pouvez définir la manière dont seront numérotés les nouveaux câbles.\n"
-							   "-Une numérotation est composée d'une variable minimum.\n"
-							   "-Vous pouvez ajouter ou supprimer une variable de numérotation par le biais des boutons - et +.\n"
-							   "-Une variable de numérotation comprend : un type, une valeur et une incrémentation.\n"
+							tr("This is where you can define how new cables will be numbered.\n"
+							   "-A numbering is composed of a minimum variable.\n"
+							   "-You can add or delete a dialing variable through the - and + buttons.\n"
+							   "-A numbering variable includes: a type, a value and an increment.\n"
 
-							   "\n-les types \"Chiffre 1\", \"Chiffre 01\" et \"Chiffre 001\", représentent un type numérique défini dans le champ \"Valeur\", "
-							   "qui s'incrémente à chaque nouveau câble de la valeur du champ \"Incrémentation\".\n"
-							   "-\"Chiffre 01\" et \"Chiffre 001\", sont respectivement représentés sur le schéma par deux et trois digits minimum.\n"
-							   "Si le chiffre défini dans le champ Valeur possède moins de digits que le type choisi,"
-							   "celui-ci sera précédé par un ou deux 0 afin de respecter son type.\n"
+							   "\n-the \"Digit 1\", \"Digit 01\" and \"Digit 001\" types represent a numeric type defined in the \"Value\" field, "
+							   "which is incremented to each new cable by the value of the \"Increment\" field.\n"
+							   "-\"Digit 01\" and \"Digit 001\", are respectively represented on the diagram by two and three digits minimum.\n"
+							   "If the digit defined in the Value field has fewer digits than the chosen type, it will be preceded by one or two 0s in "
+							   "order to respect its type.\n"
 
-							   "\n-Le type \"Texte\", représente un texte fixe.\nLe champ \"Incrémentation\" n'est pas utilisé.\n"
+							   "\n-Type \"Text\", represents a fixed text.\nThe \"Increment\" field is not used.\n"
 
-							   "\n-Le type \"N° folio\" représente le n° du folio en cours.\nLes autres champs ne sont pas utilisés.\n"
+							   "\n-The \"Sheet no.\" type represents the number of the current sheet.\nThe other fields are not used.\n"
 
-							   "\n-Le type \"Folio\" représente le nom du folio en cours.\nLes autres champs ne sont pas utilisés.",
+							   "\n-The \"Sheet\" type represents the name of the current sheet.\nThe other fields are not used.",
 							   "help dialog about the cable autonumerotation"
 							   ));
 				break;