merge sv4d changes: 1. reduce memory consumption (40G -> 20G) and speed up (500s -> 200s) 2. add gradio demo #210

	name: Build package

	on:
	push:
	branches: [ main ]
	pull_request:

	jobs:
	build:
	name: Build
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	python-version: ["3.8", "3.10"]
	requirements-file: ["pt2", "pt13"]
	steps:
	- uses: actions/checkout@v2
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -r requirements/${{ matrix.requirements-file }}.txt
	pip install .

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