Add very simple benchmarking against reactor-c #420

	name: Memory usage report

	on:
	pull_request:

	permissions:
	contents: write
	pull-requests: write

	jobs:
	ci:
	name: Report memory usage
	runs-on: ubuntu-latest
	steps:
	# To get the potential changes to CI
	- name: Checkout
	uses: actions/checkout@v3
	with:
	submodules: recursive

	- name: Generate memory usage report (base branch)
	id: base
	uses: ./.github/actions/memory-report
	with:
	branch: ${{ github.base_ref }}
	- name: Generate memory usage report (head branch) # I.e. the PR branch
	id: head
	uses: ./.github/actions/memory-report
	with:
	branch: ${{ github.head_ref }}

	- name: Compare
	run: \|
	echo "$BASE_REPORT" > base_report.txt
	echo "$HEAD_REPORT" > head_report.txt
	python3 -m pip install -r scripts/ci/reports/requirements.txt
	python3 scripts/ci/reports/parse-reports.py \
	head_report.txt \
	base_report.txt \
	report
	env:
	BASE_REPORT: ${{ steps.base.outputs.report }}
	HEAD_REPORT: ${{ steps.head.outputs.report }}

	# This in conjunction with create-or-update-comment allows us to only
	# comment once and update it after
	- name: Find Comment
	uses: peter-evans/find-comment@v3
	id: fc
	with:
	issue-number: ${{ github.event.pull_request.number }}
	comment-author: 'github-actions[bot]'
	body-includes: Memory report

	- name: Create or update comment
	uses: peter-evans/create-or-update-comment@v4
	with:
	comment-id: ${{ steps.fc.outputs.comment-id }}
	issue-number: ${{ github.event.pull_request.number }}
	body-path: report.md
	edit-mode: replace

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