More maintenance changes

Added a .clang-format file. Source files should gradually migrate toward
the described format as they are modified.

Added a .clang-tidy file. No attempt has been made to fix linter errors
in this project yet, but it's a useful first step.

Updated rules/test.boc to correctly filter JK_ROOT from generated output
in the smoke tests.

Updated a golden output file from unit test harness integration test.

.clang-format

@@ -0,0 +1,82 @@
+AccessModifierOffset: -4
+AlignAfterOpenBracket: Align
+AlignConsecutiveAssignments: false
+AlignConsecutiveDeclarations: false
+AlignEscapedNewlines: Right
+AlignOperands: true
+AlignTrailingComments: false
+AllowAllParametersOfDeclarationOnNextLine: false
+AllowShortBlocksOnASingleLine: false
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: Empty
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
+AlwaysBreakAfterReturnType: None
+AlwaysBreakBeforeMultilineStrings: false
+AlwaysBreakTemplateDeclarations: true
+BinPackArguments: false
+BinPackParameters: false
+BraceWrapping: {AfterClass: false, AfterControlStatement: false, AfterEnum: false,
+  AfterFunction: true, AfterNamespace: false, AfterObjCDeclaration: false, AfterStruct: false,
+  AfterUnion: false, BeforeCatch: true, BeforeElse: true, IndentBraces: false,
+  SplitEmptyFunction: true, SplitEmptyRecord: true}
+BreakAfterJavaFieldAnnotations: true
+BreakBeforeBinaryOperators: None
+BreakBeforeBraces: Custom
+BreakBeforeInheritanceComma: true
+BreakBeforeTernaryOperators: true
+BreakConstructorInitializers: BeforeComma
+BreakStringLiterals: true
+ColumnLimit: 100
+CommentPragmas: '^ (TESTED_BY|EXCL_.*)'
+CompactNamespaces: false
+ConstructorInitializerAllOnOneLineOrOnePerLine: false
+ConstructorInitializerIndentWidth: 4
+ContinuationIndentWidth: 4
+Cpp11BracedListStyle: true
+DerivePointerAlignment: false
+DisableFormat: false
+FixNamespaceComments: false
+ForEachMacros: [Q_FOREACH, BOOST_FOREACH]
+IncludeCategories:
+- {Priority: 2, Regex: ^"(llvm|llvm-c|clang|clang-c)/}
+- {Priority: 3, Regex: ^(<|"(gtest|isl|json)/)}
+- {Priority: 1, Regex: .*}
+IncludeIsMainRegex: $
+IndentCaseLabels: false
+IndentWidth: 4
+IndentWrappedFunctionNames: true
+JavaScriptQuotes: Leave
+KeepEmptyLinesAtTheStartOfBlocks: false
+Language: Cpp
+MacroBlockBegin: ''
+MacroBlockEnd: ''
+MaxEmptyLinesToKeep: 1
+NamespaceIndentation: All
+ObjCBlockIndentWidth: 6
+ObjCSpaceAfterProperty: true
+ObjCSpaceBeforeProtocolList: true
+PenaltyBreakBeforeFirstCallParameter: 23
+PenaltyBreakComment: 300
+PenaltyBreakFirstLessLess: 120
+PenaltyBreakString: 1450
+PenaltyExcessCharacter: 829454
+PenaltyReturnTypeOnItsOwnLine: 51
+PointerAlignment: Right
+ReflowComments: true
+SortIncludes: true
+SortUsingDeclarations: true
+SpaceAfterCStyleCast: false
+SpaceAfterTemplateKeyword: true
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeParens: Never
+SpaceInEmptyParentheses: false
+SpacesBeforeTrailingComments: 1
+SpacesInAngles: false
+SpacesInCStyleCastParentheses: false
+SpacesInContainerLiterals: false
+SpacesInParentheses: false
+SpacesInSquareBrackets: false
+Standard: Cpp11
+TabWidth: 4
+UseTab: Never