Add Catch2 and Google Test on Cmake

ToDo:
- Add compiling QElectroTech on Cmake (help needed)
- more Tests?
   - Qt Test
   - Boost Test

to test
run qtcreator
File >  open => CMakeLists.txt

tests/catch/.clang-format

@@ -0,0 +1,67 @@
+---
+BasedOnStyle: LLVM
+AlignAfterOpenBracket: AlwaysBreak
+AlignConsecutiveMacros: 'true'
+AlignConsecutiveAssignments: 'true'
+AlignConsecutiveDeclarations: 'true'
+AlignEscapedNewlines: Right
+AlignOperands: 'true'
+AlignTrailingComments: 'true'
+AllowAllArgumentsOnNextLine: 'false'
+AllowAllConstructorInitializersOnNextLine: 'true'
+AllowAllParametersOfDeclarationOnNextLine: 'true'
+AllowShortBlocksOnASingleLine: 'true'
+AllowShortCaseLabelsOnASingleLine: 'true'
+AllowShortFunctionsOnASingleLine: All
+AllowShortIfStatementsOnASingleLine: Always
+AllowShortLambdasOnASingleLine: All
+AllowShortLoopsOnASingleLine: 'true'
+AlwaysBreakAfterReturnType: None
+AlwaysBreakBeforeMultilineStrings: 'true'
+AlwaysBreakTemplateDeclarations: 'Yes'
+BinPackArguments: 'false'
+BinPackParameters: 'false'
+BreakAfterJavaFieldAnnotations: 'true'
+BreakBeforeBinaryOperators: NonAssignment
+BreakBeforeBraces: Allman
+BreakBeforeTernaryOperators: 'false'
+BreakConstructorInitializers: AfterColon
+BreakInheritanceList: AfterColon
+BreakStringLiterals: 'true'
+ColumnLimit: '80'
+CompactNamespaces: 'false'
+ConstructorInitializerAllOnOneLineOrOnePerLine: 'true'
+Cpp11BracedListStyle: 'true'
+FixNamespaceComments: 'true'
+IncludeBlocks: Regroup
+IndentCaseLabels: 'false'
+IndentPPDirectives: AfterHash
+IndentWidth: '4'
+JavaScriptWrapImports: 'true'
+Language: Cpp
+MaxEmptyLinesToKeep: '1'
+NamespaceIndentation: All
+PointerAlignment: Left
+ReflowComments: 'true'
+SortIncludes: 'true'
+SortUsingDeclarations: 'true'
+SpaceAfterCStyleCast: 'true'
+SpaceAfterLogicalNot: 'true'
+SpaceAfterTemplateKeyword: 'true'
+SpaceBeforeAssignmentOperators: 'true'
+SpaceBeforeCpp11BracedList: 'true'
+SpaceBeforeCtorInitializerColon: 'true'
+SpaceBeforeInheritanceColon: 'true'
+SpaceBeforeParens: ControlStatements
+SpaceBeforeRangeBasedForLoopColon: 'true'
+SpaceInEmptyParentheses: 'false'
+SpacesInAngles: 'false'
+SpacesInCStyleCastParentheses: 'false'
+SpacesInContainerLiterals: 'false'
+SpacesInParentheses: 'false'
+SpacesInSquareBrackets: 'false'
+Standard: Cpp11
+TabWidth: '4'
+UseTab: Always
+
+...