Composer package name has been changed from crynton/pr-teamspeak to kronova/pr-teamspeak!

Changes:
Update namespace: CryntonCom - KronovaNet
Update packagist package name: crynton/pr-teamspeak - kronova/pr-teamspeak
Update code and structure to be TYPO3 v10 compatible
Resolve all deprecations of TYPO3 v10