feat(Core): added clang-format (#6848)

.clang-format

@@ -0,0 +1,34 @@
+---
+AlignConsecutiveMacros: 'true'
+AlignConsecutiveAssignments: 'true'
+AlignConsecutiveDeclarations: 'true'
+AlignTrailingComments: 'true'
+AllowAllConstructorInitializersOnNextLine: 'false'
+AllowAllParametersOfDeclarationOnNextLine: 'false'
+AllowShortBlocksOnASingleLine: 'false'
+AllowShortCaseLabelsOnASingleLine: 'false'
+AllowShortFunctionsOnASingleLine: Empty
+AllowShortIfStatementsOnASingleLine: Never
+AllowShortLambdasOnASingleLine: Inline
+AllowShortLoopsOnASingleLine: 'true'
+BinPackArguments: 'true'
+BinPackParameters: 'true'
+BreakBeforeBraces: Allman
+IndentWidth: '4'
+SpaceAfterCStyleCast: 'true'
+SpaceBeforeCpp11BracedList: 'true'
+SpaceBeforeParens: ControlStatements
+SpaceBeforeRangeBasedForLoopColon: 'true'
+SpaceInEmptyParentheses: 'false'
+SpacesInAngles: 'false'
+SpacesInCStyleCastParentheses: 'false'
+SpacesInContainerLiterals: 'false'
+SpacesInParentheses: 'false'
+Standard: Latest
+TabWidth: '0'
+UseTab: Never
+PointerAlignment: Left
+ColumnLimit: 0
+
+
+...