* Created new folder-structure to adopt namespace scheme for composer
* Moved Exception Class in own file
* Removed example file - thats something for readme
* Added Namespaces
* Moved helper function to static class
* Streamlined some classes and removed unused private functions
* Deleted examples
* Added all other API functions which are currently available in all-inkl API documentation
* changed some type hints in comments
* Renamed some functions to a more accurate name
* Extended readme file