Implemented Möller-Trumbore intersection algorithm for differentiable ray triangle intersection #1818

	# Continuous integration tests executed on push and pull request actions
	# see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions

	name: Build

	on:
	push:
	branches: [ master ]
	pull_request:
	branches: [ master ]

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: 3.8
	- name: Install system requirements
	run: \|
	sudo xargs apt-get update
	sudo xargs apt-get -y install < requirements.unix
	- name: Install pip requirements
	run: \|
	python -m pip install --upgrade pip
	pip install -U -r requirements.txt
	pip install -U pytest coveralls
	pip install -U flake8
	pip install -U setuptools wheel
	- name: Build ops
	run: \|
	bazel build tensorflow_graphics/... --define=BASEDIR=$(pwd) --sandbox_writable_path=$(pwd)
	bazel clean --expunge
	- name: Run python tests and coverage
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	MESA_GL_VERSION_OVERRIDE: 4.5
	MESA_GLSL_VERSION_OVERRIDE: 450
	run: \|
	coverage run --source tensorflow_graphics -m py.test
	coveralls --service=github
	- name: Linter
	run: \|
	flake8 --config=.flake8 tensorflow_graphics/
	- name: Build pip package and install
	run: \|
	python setup.py sdist bdist_wheel
	pip install dist/*.whl
	- name: Test install
	run: \|
	cd $(mktemp -d) && python -c 'import tensorflow_graphics as tfg'

Provide feedback