Add helper scripts and wlroots integration

Signed-off-by: Slendi <slendi@socopon.com>

tools/clang-format.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+cd $(dirname $0)/.. || exit 1
+find src '(' -name '*.c' -o -name '*.h' -o -name '*.cpp' -o -name '*.hpp' ')' -print0 | xargs -0 clang-format -i
+
+echo 'Formatted source files in src/'