v2.0.0 Suport for TYPO3 v12 and filefill

What's Changed

• [TASK] Add support for v12 by @twoldanski in #5
• [TASK] Add support for debughelper with v12 by @twoldanski in #7
• [TASK] Remove not maintained backend module by @twoldanski in #6
• [TASK] Add quick workaround for broken FileFill by @twoldanski in #8
• [TASK] Remove hotfix for filefill by @twoldanski in #9

Full Changelog: v1.0.1...v2.0.0