Add and apply clang-format

This project has no standard on coding style,
some files use tab, others space, and new
Merge Requests usually break the current formatting
with this clang-format we can easy this.

.clang-format

@@ -0,0 +1,93 @@
+# .clang-format for Cutelyst projects 2023-04-18
+# Tries to be close to Qt coding style
+# but meh for ASql lambdas which LambdaBodyIndentation ins't enough
+---
+AccessModifierOffset: -4
+AlignAfterOpenBracket: Align
+AlignConsecutiveMacros: 'false'
+AlignConsecutiveAssignments: 'true'
+AlignConsecutiveDeclarations: 'false'
+AllowShortEnumsOnASingleLine: 'true'
+AlignEscapedNewlines: DontAlign
+AlignOperands: 'true'
+AlignTrailingComments: 'true'
+AllowAllArgumentsOnNextLine: 'true'
+AllowAllParametersOfDeclarationOnNextLine: 'false'
+AllowShortBlocksOnASingleLine: 'false'
+AllowShortCaseLabelsOnASingleLine: 'false'
+AllowShortFunctionsOnASingleLine: Inline
+AllowShortIfStatementsOnASingleLine: Never
+AllowShortLambdasOnASingleLine: Inline
+AllowShortLoopsOnASingleLine: 'false'
+AlwaysBreakAfterReturnType: None
+AlwaysBreakBeforeMultilineStrings: 'false'
+AlwaysBreakTemplateDeclarations: 'Yes'
+BinPackArguments: 'false'
+BinPackParameters: 'false'
+BreakBeforeBinaryOperators: None
+BreakBeforeBraces: Custom
+BraceWrapping:
+    AfterCaseLabel: 'true'
+    AfterClass: 'true'
+    AfterEnum: 'false'
+    AfterFunction:   true
+    SplitEmptyFunction: 'true'
+    SplitEmptyRecord: 'true'
+    SplitEmptyNamespace: 'true'
+BreakBeforeTernaryOperators: 'true'
+BreakConstructorInitializers: BeforeComma
+BreakInheritanceList: BeforeComma
+BreakStringLiterals: 'true'
+CompactNamespaces: 'false'
+ConstructorInitializerAllOnOneLineOrOnePerLine: 'false'
+ConstructorInitializerIndentWidth: '4'
+ContinuationIndentWidth: '4'
+ColumnLimit: 100
+Cpp11BracedListStyle: 'true'
+FixNamespaceComments: 'true'
+ForEachMacros:
+  - forever # avoids { wrapped to next line
+  - foreach
+  - Q_FOREACH
+  - BOOST_FOREACH
+IncludeCategories:
+  - Regex:           '^<Q.*'
+    Priority:        200
+IncludeBlocks: Regroup
+IndentAccessModifiers: 'false'
+IndentCaseLabels: 'false'
+IndentPPDirectives: AfterHash
+IndentWidth: '4'
+IndentWrappedFunctionNames: 'true'
+KeepEmptyLinesAtTheStartOfBlocks: 'true'
+Language: Cpp
+LambdaBodyIndentation: OuterScope
+NamespaceIndentation: None
+PointerAlignment: Right
+ReflowComments: 'true'
+SortIncludes: 'true'
+SortUsingDeclarations: 'false'
+SpaceAfterCStyleCast: 'true'
+SpaceAfterLogicalNot: 'false'
+SpaceAfterTemplateKeyword: 'true'
+SpaceBeforeAssignmentOperators: 'true'
+SpaceBeforeCpp11BracedList: 'false'
+SpaceBeforeCtorInitializerColon: 'true'
+SpaceBeforeInheritanceColon: 'true'
+SpaceBeforeParens: ControlStatements
+SpaceBeforeRangeBasedForLoopColon: 'true'
+SpaceInEmptyParentheses: 'false'
+SpacesInAngles: 'false'
+SpacesInCStyleCastParentheses: 'false'
+SpacesInContainerLiterals: 'false'
+SpacesInParentheses: 'false'
+SpacesInSquareBrackets: 'false'
+Standard: Cpp11
+StatementMacros:
+  - Q_UNUSED
+  - QT_REQUIRE_VERSION
+WhitespaceSensitiveMacros:
+  - C_ATTR
+UseTab: Never
+
+...

DateTime/main.cpp

@@ -1,19 +1,19 @@
 // main.cpp
 
-#include <QtGlobal>
+#include <iostream>
+
 #include <QCoreApplication>
-#include <QtCore>
-#include <QVector>
+#include <QDebug>
 #include <QVariant>
-#include <QDebug> 
-
-#include <iostream>
+#include <QVector>
+#include <QtCore>
+#include <QtGlobal>
 using namespace std;
 
-#include "xlsxdocument.h"
-#include "xlsxchartsheet.h"
 #include "xlsxcellrange.h"
 #include "xlsxchart.h"
+#include "xlsxchartsheet.h"
+#include "xlsxdocument.h"
 #include "xlsxrichstring.h"
 #include "xlsxworkbook.h"
 using namespace QXlsx;
@@ -22,12 +22,11 @@ extern int test(QVector<QVariant> params);
 
 int main(int argc, char *argv[])
 {
-	QCoreApplication app(argc, argv);
+    QCoreApplication app(argc, argv);
 
-	QVector<QVariant> testParams;
-	int ret = test(testParams);
+    QVector<QVariant> testParams;
+    int ret = test(testParams);
     // qDebug() << "test return value : " << ret;
 
-	return 0; 
+    return 0;
 }
-