Better handle MAP/QUESTS dir paths

[twostars]

As-is, this is always ../{working dir}.

Realistically this should just be {working dir} by default; the only reason we don't do this is because of VS and asset management. That is, we don't copy it to the specific binary's build dir, we just let it access it up a level (which is also just wrong; it's currently mixing 32-bit and 64-bit builds, oops).

We should add a command-line arg for this (or 2?), and otherwise default it to the working directory. The default debugger info should then be updated to pass the command-line arg to point to it in the repo directly.

Additionally, we can then remove /Server/bin/ entirely (moving the assets elsewhere) and just have it all consistently under /bin/.