Add tool: clang-format.sh (#7940)

Signed-off-by: anton <haglundanton+github@gmail.com>

tools/clang-format.sh

@@ -0,0 +1,26 @@
+#!/bin/sh
+
+# Automatic indentation of all .c, .cpp and .h-files using clang-format
+# based on https://github.com/opentx/opentx/wiki/OpenTX-Code-Style-Guide
+
+# clang-format version 10.0.0
+
+for i in $(find ./ -name "*.c" -or -name "*.cpp" -or -name "*.h")
+do
+	echo $i
+	clang-format -i -style="{BasedOnStyle: LLVM,
+				 IndentWidth: 2,
+				 UseTab: Never,
+
+				 AllowShortBlocksOnASingleLine: false,
+				 AllowShortIfStatementsOnASingleLine: false,
+				 AllowShortFunctionsOnASingleLine: false,
+
+				 BreakBeforeBraces: Custom,
+				 BraceWrapping: { AfterFunction: true,
+						  BeforeElse: true },
+
+				 IndentCaseLabels: true,
+				 PenaltyReturnTypeOnItsOwnLine: 0,
+				 ColumnLimit: 120}" $i
+done