utils: add new tool xash-clang-format, a wrapper around clang-format that adds our formatting extensions

.clang-format

@@ -0,0 +1,113 @@
+Language: Cpp
+Standard: c++17
+UseTab: ForContinuationAndIndentation
+TabWidth: 4
+IndentWidth: 4
+ContinuationIndentWidth: 4
+IndentCaseLabels: false
+IndentPPDirectives: None
+NamespaceIndentation: None
+AccessModifierOffset: -4
+IndentAccessModifiers: false
+BreakBeforeBraces: Custom
+BraceWrapping:
+  AfterCaseLabel: true
+  AfterClass: true
+  AfterControlStatement: Always
+  AfterEnum: true
+  AfterFunction: true
+  AfterNamespace: true
+  AfterStruct: true
+  AfterUnion: true
+  AfterExternBlock: false
+  BeforeCatch: true
+  BeforeElse: true
+  BeforeWhile: true
+  IndentBraces: false
+  SplitEmptyFunction: false
+  SplitEmptyRecord: false
+  SplitEmptyNamespace: false
+MaxEmptyLinesToKeep: 2
+KeepEmptyLinesAtTheStartOfBlocks: false
+KeepEmptyLinesAtEOF: false
+SeparateDefinitionBlocks: Always
+InsertNewlineAtEOF: true
+LineEnding: LF
+AllowAllArgumentsOnNextLine: true
+AllowAllParametersOfDeclarationOnNextLine: true
+BinPackArguments: true
+BinPackParameters: true
+AlwaysBreakAfterReturnType: None
+AlwaysBreakAfterDefinitionReturnType: None
+AllowShortFunctionsOnASingleLine: None
+AllowShortBlocksOnASingleLine: Empty
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortIfStatementsOnASingleLine: Never
+AllowShortLoopsOnASingleLine: false
+AllowShortEnumsOnASingleLine: false
+BreakBeforeBinaryOperators: All
+BreakBeforeTernaryOperators: true
+BreakConstructorInitializers: BeforeColon
+PointerAlignment: Right
+DerivePointerAlignment: false
+ReferenceAlignment: Pointer
+SpaceAroundPointerQualifiers: Default
+SpacesInParens: Custom
+SpacesInParensOptions:
+  ExceptDoubleParentheses: true
+  InCStyleCasts: false
+  InConditionalStatements: true
+  InEmptyParentheses: false
+  Other: true
+# XashCollapseParens: true
+SpaceBeforeParens: Never
+SpaceAfterCStyleCast: false
+SpaceAfterLogicalNot: false
+SpaceAfterTemplateKeyword: true
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeCaseColon: false
+SpaceBeforeCpp11BracedList: false
+SpaceBeforeCtorInitializerColon: true
+SpaceBeforeInheritanceColon: true
+SpaceBeforeRangeBasedForLoopColon: true
+SpaceBeforeSquareBrackets: false
+SpaceInEmptyBlock: false
+SpacesInAngles: Never
+SpacesInContainerLiterals: false
+SpacesInSquareBrackets: false
+Cpp11BracedListStyle: false
+SpacesBeforeTrailingComments: 1
+SpacesInLineCommentPrefix:
+  Minimum: 1
+  Maximum: -1
+AlignAfterOpenBracket: DontAlign
+AlignArrayOfStructures: None
+AlignConsecutiveAssignments:
+  Enabled: false
+  AcrossEmptyLines: false
+  AcrossComments: false
+AlignConsecutiveBitFields:
+  Enabled: false
+  AcrossEmptyLines: false
+  AcrossComments: false
+AlignConsecutiveDeclarations:
+  Enabled: false
+  AcrossEmptyLines: false
+  AcrossComments: false
+  AlignCompound: false
+AlignConsecutiveMacros:
+  Enabled: true
+  AcrossEmptyLines: false
+  AcrossComments: false
+AlignEscapedNewlines: Left
+AlignOperands: Align
+AlignTrailingComments:
+  Kind: Always
+  OverEmptyLines: 0
+ColumnLimit: 0
+ReflowComments: false
+SortIncludes: Never
+SortUsingDeclarations: false
+InsertBraces: false
+RemoveBracesLLVM: false
+FixNamespaceComments: false