`swift-format`: default configurations

.swift-format

{
  "blankLineBetweenMembers" : {
    "ignoreSingleLineProperties" : true
  },
  "indentation" : {
    "spaces" : 2
  },
  "lineBreakBeforeControlFlowKeywords" : false,
  "lineBreakBeforeEachArgument" : false,
  "lineLength" : 100,
  "maximumBlankLines" : 1,
  "respectsExistingLineBreaks" : true,
  "rules" : {
    "AllPublicDeclarationsHaveDocumentation" : true,
    "AlwaysUseLowerCamelCase" : true,
    "AmbiguousTrailingClosureOverload" : true,
    "BeginDocumentationCommentWithOneLineSummary" : true,
    "BlankLineBetweenMembers" : true,
    "CaseIndentLevelEqualsSwitch" : true,
    "DoNotUseSemicolons" : true,
    "DontRepeatTypeInStaticProperties" : true,
    "FullyIndirectEnum" : true,
    "GroupNumericLiterals" : true,
    "IdentifiersMustBeASCII" : true,
    "MultiLineTrailingCommas" : true,
    "NeverForceUnwrap" : true,
    "NeverUseForceTry" : true,
    "NeverUseImplicitlyUnwrappedOptionals" : true,
    "NoAccessLevelOnExtensionDeclaration" : true,
    "NoBlockComments" : true,
    "NoCasesWithOnlyFallthrough" : true,
    "NoEmptyTrailingClosureParentheses" : true,
    "NoLabelsInCasePatterns" : true,
    "NoLeadingUnderscores" : true,
    "NoParensAroundConditions" : true,
    "NoVoidReturnOnFunctionSignature" : true,
    "OneCasePerLine" : true,
    "OneVariableDeclarationPerLine" : true,
    "OnlyOneTrailingClosureArgument" : true,
    "OrderedImports" : true,
    "ReturnVoidInsteadOfEmptyTuple" : true,
    "UseEnumForNamespacing" : true,
    "UseLetInEveryBoundCaseVariable" : true,
    "UseShorthandTypeNames" : true,
    "UseSingleLinePropertyGetter" : true,
    "UseSynthesizedInitializer" : true,
    "UseTripleSlashForDocumentationComments" : true,
    "ValidateDocumentationComments" : true
  },
  "tabWidth" : 8,
  "version" : 1
}