Added a pre-commit hook that should simplify commiting pre-formatted code

hooks/README.md

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+# Git hooks
+
+This directory contains Git hooks that simplify contributing to this repository.
+
+You can install them by copying the files into `.git/hooks` in the repository folder or by running `git config --local core.hooksPath hooks`

hooks/pre-commit

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+#!/bin/bash
+for FILE in $(git diff --cached --name-only)
+do
+	if [[ "$FILE" =~ src/[A-Za-z0-9\ \-]+*\.(c|h|cpp|cc)$ ]]; then
+		echo Autoformatting $FILE with clang-format
+		clang-format-11 -style=file -i -- $FILE
+		git add -- $FILE
+	elif [[ "$FILE" =~ src/(components|displayapp|drivers|heartratetask|logging|systemtask)/.*\.(c|h|cpp|cc)$ ]]; then
+		echo Autoformatting $FILE with clang-format
+		clang-format-11 -style=file -i -- $FILE
+		git add -- $FILE
+	fi
+done