[Tachyon-14] TachyonURI (Client)

Internal methods that are deprecated should be removed as the refactor continues. Some questions left in the code as TODOs, will clean them up as they are addressed.
Sorry, I meant just remove all methods with string as input params (deprecated ones) right now.
There is no need to add them as deprecated to the interface since TachyonFS was just concrete file in prev releases.

TachyonFS class is the only need to keep the deprecated methods.