Run lints at pre-commit

Install a hook to run lints at pre-commit to force issues to be fixed
during development.

This introduces a 5-10 second delay when committing due to how slow
clang-format is.

Signed-off-by: Tim Crawford <tcrawford@system76.com>

scripts/hooks/pre-commit.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: GPL-3.0-only
+
+make lint 2>/dev/null || {
+    echo -e "\nissues found, not committing"
+    exit 1
+}