Code Cleanup of the entire code

[SKO85]

• Cleaned up all code.
• Reorganised code and made it a bit more consistent.
• Removed unused using-statements.

[rexxar-tc]

This will not be merged.

This pull request seems to be the result of running ReSharper or another similar code formatting tool. In general, this type of pull request is frowned upon in the open source community. This kind of pull request generates far more work for the project maintainer, as I would have to manually review 700 line changes across 23 files, which will take way more time than it's worth, especially considering I can run a cleanup tool on my own in just a few minutes.

While cleanup PRs do have a time and place, you must start from a clean copy of master, and have no other changes or additions. This branch appears to contain code additions, which cannot be accepted as part of a cleanup pull request. This is mostly because it becomes impossible to track down and revert code additions when there are this many changes.

I do appreciate you wanting to contribute. However, we won't be accepting any cleanup PRs, as this entire project is going to be refactored or rewritten in the near future.