* Package names validations
validate if package has more than 30 characters name and if root packages does not contain a package with the same name as his.
* Validate grandchildren package names
* Added Buffering to ZCL_ABAPGIT_FOLDER_LOGIC
- Converted ZCL_ABAPGIT_FOLDER_LOGIC=>PACKAGE_TO_PATH and ZCL_ABAPGIT_FOLDER_LOGIC=>PATH_TO_PACKAGE to instance methods, so they can work with buffered data when constructiing path information. This gives a performance advantage in repos with a depp tree structure and multiple leaf packages
- Adapted all calling code to use an instance of ZCL_ABAPGIT_FOLDER_LOGIC instead of the previously available static methods
- Where applicaple PACKAGE_TO_PATH and PATH_TO_PACKAGE were called in an instance of ZCL_ABAPGIT_FOLDER_LOGIC, which was instanced outside of a processing loop and thus profited from the introduced buffering
* Fixed errors
* Removed obsolete coding artifacts
Removed an obsolete parameter, that accidentally got merged into the code when building the pull request
* Forwarded FOLDER_LOGIC instance to recursed calls
Forwarded ZCL_ABAPGIT_FOLDER_LOGIC instance to subsequent BUILD calls to make use of buffering, until the optimizations in #1725 are in place.
