build: introduce clang-format in the code base, enforce via CI #6

	name: Check code formatting

	on:
	push:
	branches:
	- main
	pull_request:
	# Allows you to run this workflow manually from the Actions tab
	workflow_dispatch:

	jobs:
	check_format:
	runs-on: ubuntu-22.04
	steps:
	- name: Install the packages needed for checking code formatting
	run: \|
	# sudo apt install --no-install-recommends -y \
	# clang-format-15
	# sudo update-alternatives --get-selections
	sudo update-alternatives --list clang-format
	sudo update-alternatives --query clang-format
	clang-format --version
	sudo update-alternatives --install /usr/bin/clang-format clang-format /usr/bin/clang-format-15 10
	sudo update-alternatives --set clang-format /usr/bin/clang-format-15
	clang-format --version
	exit 1
	- name: Checkout itcoin-fbft
	uses: actions/checkout@v3
	with:
	fetch-depth: 1
	- name: check code formatting
	run: \|
	make check-code-formatting

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