Adds cacheable informations
Adds more tests
Refactores Country-Cache
Merge remote-tracking branch 'main/master' into feature/addCachingTable

Conflicts:
	composer.json
	src/module/Phpug/config/module.config.php
Fixes issue with colon
Adds ISO-Codes for country
Refactors Cache-Populators
Merge pull request #49 from heiglandreas/feature/addCachingTable

Add caching mechanism