Reapply "Add cable management: drawing, cores, numbering, cross-references and cable list"

This reverts commit 2bb3343d2d.

sources/autoNum/assignvariables.h

@@ -117,6 +117,31 @@ namespace autonum
 	void setFolioSequentialToHash(QStringList &list, QHash<QString, QStringList> &hash, const QString& autoNumName);
 	void setSequential(const QString& label, autonum::sequentialNumbers &seqStruct, NumerotationContext &context, Diagram *diagram, const QString& hashKey);
 	QString numerotationContextToFormula(const NumerotationContext &nc);
+	/**
+		Put back every part of a numbering rule whose counter belongs to
+		one single folio -- "Chiffre 1 - Folio" and its two longer forms
+		-- to the beginning that folio is numbered from, which is the
+		initial value written into the rule itself. The parts which count
+		over the whole project are left exactly as they are: a folio
+		starts again, the project does not.
+		@param nc the rule to read
+		@return the same rule, with its folio-bound counters restarted
+	*/
+	NumerotationContext resetFolioCounters(const NumerotationContext &nc);
+	/**
+		Set every part of a numbering rule which counts back to its very
+		first value, so that numbering starts at the beginning again --
+		which is what numbering a whole project over has to do, whatever
+		the last number handed out happened to be. A part which counts
+		from an initial value of its own goes back to that value, a plain
+		number goes back to 1, a cyclic one to 0 and an alphabetic one to
+		"a". The parts which do not count -- a fixed text, the number of
+		the folio, the plant -- are left exactly as they are: they say
+		what a number is made of, they are not the part which goes on.
+		@param nc the rule to read
+		@return the same rule, with its counters at their beginning
+	*/
+	NumerotationContext resetContextCounters(const NumerotationContext &nc);
 	QString elementPrefixForLocation(const ElementsLocation &location);
 }