[orx-obj-loader] Add obj saver, demos #339

	name: Build
	on:
	# Trigger the workflow on any pull request
	pull_request:

	concurrency:
	group: ${{ github.ref }}
	cancel-in-progress: true

	defaults:
	run:
	working-directory: ./orx

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout current repository
	uses: actions/checkout@v4
	with:
	path: ./orx

	- name: Validate Gradle wrapper
	uses: gradle/actions/wrapper-validation@v3

	- name: Checkout OPENRNDR repository
	uses: actions/checkout@v4
	with:
	fetch-depth: 0
	repository: openrndr/openrndr
	path: ./openrndr
	ref: master

	- name: Test glxinfo
	run: \|
	sudo apt-get update
	sudo apt-get install -y mesa-utils xvfb
	xvfb-run glxinfo

	- uses: actions/setup-java@v4
	with:
	distribution: temurin
	java-version: 17
	cache: gradle

	- name: Build OPENRNDR
	working-directory: ./openrndr
	run: ./gradlew publishToMavenLocal snapshot

	- name: Build ORX
	run: ./gradlew build

	- name: Collect screenshots without errors
	run: xvfb-run ./gradlew collectScreenshots

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