Added tests and CI checks #3

	name: CI

	on:
	- pull_request
	- push

	jobs:
	php-cs-fixer:
	name: CS Fixer
	runs-on: ubuntu-latest
	container:
	image: ghcr.io/elbformat/php-cs-fixer:edge-php8.2
	steps:
	- name: Checkout code
	uses: actions/checkout@v4
	- name: Check src
	run: php-cs-fixer fix --dry-run src
	- name: Check tests
	run: php-cs-fixer fix --dry-run tests

	phpunit:
	name: Unittest
	runs-on: ubuntu-latest
	container:
	image: ghcr.io/elbformat/ibexa-icon-fieldtype/php
	steps:
	- name: Checkout code
	uses: actions/checkout@v4
	- name: Install dependencies
	run: composer install
	- name: Run tests
	run: vendor/bin/phpunit

	phpstan:
	name: Static code analysis
	runs-on: ubuntu-latest
	container:
	image: hgiesenow/phpstan:1.10
	steps:
	- name: Checkout code
	uses: actions/checkout@v4
	- name: Analyse
	run: phpstan

Provide feedback