Compatibility with Symfony 7 (#63)

* replaced to tiny

* Added devcontainer

* Added php 8.* to gh actions

* Allow Sf7

* Allow symfony flex

Fixes in Readme #33

Removed not related information of this bundle

Merge pull request #21 from helios-ag/analysis-8nVly8

Applied fixes from StyleCI

Merge pull request #19 from helios-ag/patch

bug fixes 2

Merge pull request #18 from helios-ag/patch1

typos

Merge pull request #15 from helios-ag/vendor_paths

vendorer public files