Copy .clang-format from Adafruit-EPD

Author: tyeth

.github/workflows/.clang-format

@@ -0,0 +1,13 @@
+Language: Cpp
+BasedOnStyle: Google
+IndentWidth: 2
+ColumnLimit: 80
+AllowShortFunctionsOnASingleLine: Empty
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
+BinPackArguments: true
+BinPackParameters: true
+BreakBeforeBraces: Attach
+DerivePointerAlignment: false
+PointerAlignment: Left
+SpacesBeforeTrailingComments: 1