Update .clang-format to 13, change brace wrapping style

.clang-format

@@ -1,12 +1,13 @@
 # -*- mode: yaml -*-
-# Written for clang-format 12.
+# Written for clang-format 13.
-# https://releases.llvm.org/12.0.0/tools/clang/docs/ClangFormatStyleOptions.html
+# https://releases.llvm.org/13.0.0/tools/clang/docs/ClangFormatStyleOptions.html
 ---
 DisableFormat: false
 Language: Cpp
 
 AccessModifierOffset: -4
 AlignAfterOpenBracket: Align
+AlignArrayOfStructures: Left
 AlignConsecutiveAssignments: None
 AlignConsecutiveBitFields: None
 AlignConsecutiveDeclarations: None
@@ -27,36 +28,20 @@ AllowShortLoopsOnASingleLine: false
 AlwaysBreakAfterReturnType: None
 AlwaysBreakBeforeMultilineStrings: false
 AlwaysBreakTemplateDeclarations: Yes
+# AttributeMacros: ['__capability', '__output', '__ununsed']
 BinPackArguments: true
 BinPackParameters: true
 BitFieldColonSpacing: Both
-BraceWrapping:                  # If BreakBeforeBraces is set to Custom.
+# BraceWrapping:                  # If BreakBeforeBraces is set to Custom.
-  AfterCaseLabel: true
-  AfterClass: true
-  AfterControlStatement: Always
-  AfterEnum: true
-  AfterFunction: true
-  AfterNamespace: true
-  AfterStruct: true
-  AfterUnion: true
-  AfterExternBlock: true
-  BeforeCatch: true
-  BeforeElse: true
-  BeforeLambdaBody: true
-  BeforeWhile: true
-  IndentBraces: false
-  SplitEmptyFunction: false
-  SplitEmptyRecord: false
-  SplitEmptyNamespace: false
 BreakBeforeBinaryOperators: NonAssignment
-BreakBeforeBraces: Custom
+BreakBeforeBraces: Attach
 BreakBeforeConceptDeclarations: true
 BreakBeforeTernaryOperators: true
 BreakConstructorInitializers: BeforeComma
 BreakInheritanceList: BeforeComma
 BreakStringLiterals: true
 ColumnLimit: 80
-# CommentPragmas: 'regex'
+# CommentPragmas:
 CompactNamespaces: false
 ConstructorInitializerAllOnOneLineOrOnePerLine: false
 ConstructorInitializerIndentWidth: 4
@@ -66,15 +51,13 @@ DeriveLineEnding: true
 DerivePointerAlignment: false
 EmptyLineBeforeAccessModifier: LogicalBlock
 FixNamespaceComments: true
-ForEachMacros:
+# ForEachMacros: ['FOREACH', 'RANGES_FOR', 'Q_FOREACH', 'BOOST_FOREACH' ]
-  - FOREACH
+# IfMacros: ['IF']
-  - RANGES_FOR
-  - Q_FOREACH
-  - BOOST_FOREACH
 IncludeBlocks: Regroup
 IncludeCategories:              # stdlib headers into own group.
   - Regex: '^[^\.]+$'
     Priority: 4
+IndentAccessModifiers: false
 IndentCaseBlocks: false
 IndentCaseLabels: false
 IndentExternBlock: NoIndent
@@ -83,12 +66,14 @@ IndentPPDirectives: AfterHash
 IndentRequires: true            # Not sure yet
 IndentWidth: 4
 IndentWrappedFunctionNames: false
+InsertTrailingCommas: None
 KeepEmptyLinesAtTheStartOfBlocks: true
-# MacroBlockBegin: 'string'
+LambdaBodyIndentation: Signature
-# MacroBlockEnd:   'string'
+# MacroBlockBegin:
+# MacroBlockEnd:
 MaxEmptyLinesToKeep: 1
 NamespaceIndentation: None
-# NamespaceMacros: 'string'
+# NamespaceMacros:
 PenaltyBreakAssignment: 250
 PenaltyBreakBeforeFirstCallParameter: 300
 # PenaltyBreakComment: 300
@@ -99,15 +84,15 @@ PenaltyBreakBeforeFirstCallParameter: 300
 # PenaltyIndentedWhitespace:
 PenaltyReturnTypeOnItsOwnLine: 100
 PointerAlignment: Right
-# RawStringFormats: # <YAML>
 ReflowComments: true
-SortIncludes: true
+SortIncludes: CaseInsensitive
 SortUsingDeclarations: true
 SpaceAfterCStyleCast: false
 SpaceAfterLogicalNot: false
 SpaceAfterTemplateKeyword: false
 SpaceAroundPointerQualifiers: Default
 SpaceBeforeAssignmentOperators: true
+SpaceBeforeCaseColon: false
 SpaceBeforeCpp11BracedList: false
 SpaceBeforeCtorInitializerColon: true
 SpaceBeforeInheritanceColon: true
@@ -124,15 +109,11 @@ SpacesInContainerLiterals: false
 SpacesInParentheses: false
 SpacesInSquareBrackets: false
 Standard: Auto
-# StatementAttributeLikeMacros:
+StatementAttributeLikeMacros: [emit]
-# StatementMacros:
+# StatementMacros: [Q_UNUSED, QT_REQUIRE_VERSION]
-#   - Q_UNUSED
-#   - QT_REQUIRE_VERSION
 TabWidth: 4
-# TypenameMacros:
+# TypenameMacros: ['STACK_OF', 'LIST']
-#   - STACK_OF
-#   - LIST
 UseCRLF: false
 UseTab: Never
-# WhitespaceSensitiveMacros: ['string', 'string']
+# WhitespaceSensitiveMacros: ['STRINGIZE', 'PP_STRINGIZE']
 ...