Add clang-format configuration

.clang-format

@@ -0,0 +1,37 @@
+---
+BasedOnStyle: Webkit
+Language:        Cpp
+SpaceBeforeParens: Always
+SpaceAfterTemplateKeyword: true
+Standard:        Cpp11
+TabWidth:        4
+IndentWidth: 4
+PointerAlignment: Middle
+UseTab: ForIndentation
+BreakBeforeBraces: Custom
+AlignEscapedNewlines: Left
+AllowShortBlocksOnASingleLine: false
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
+BreakConstructorInitializersBeforeComma: true
+BreakConstructorInitializers: AfterColon
+ConstructorInitializerAllOnOneLineOrOnePerLine: false
+ConstructorInitializerIndentWidth: 0
+ContinuationIndentWidth: 0
+KeepEmptyLinesAtTheStartOfBlocks: false
+IndentCaseLabels: true
+BraceWrapping:
+  AfterEnum: true
+  AfterStruct: true
+  SplitEmptyFunction: true
+  AfterControlStatement: true
+  AfterFunction: true
+  AfterNamespace: true
+  AfterUnion: true
+  AfterClass: true
+  BeforeCatch: true
+  BeforeElse: true
+  SplitEmptyRecord: true
+  SplitEmptyNamespace: true
+...