Reduce part count (rebased, example, WIP)

[keyspace]

General discussion: #12

Most changes via shell scripts. Therefore monotonic, don't be alarmed by changed file count.

Major:

• bundled Firespitter DLL for simultaneous fuel/texture switching;
• added rudimentary Linux Debug build (using MonoDevelop);
• placed parts in Parts/*, DLL in Plugins (see tree).

Minor:

• named "combined CO2 + WasteWater + Waste" containers "Refuse" instead of "Waste" in the fuel switch menu (and part filenames) to avoid confusion; actual part names remain the same for compatibility (and to promote confusion);
• don't show legacy parts in VAB/SPH; won't be shown in Tech Tree, too, unless already unlocked.

TBD:

• more notes here instead of in-commit;
• perhaps borrow Firespitter's code instead of including it whole;
• move WasteContainers to Legacy, too, and add RefuseContainers?..

[JPLRepo]

There are way too many changes in this PR.
Will take some time to look at this.
And I don't agree with using firespitter as a hard dependency.
I also think the community/users of TAC LS should be consulted first as the changes here are drastic.
Also that needs to be considered is what is the impact on other mods such as Realism Overhaul?

[keyspace]

Post-factum thought: it would have been simpler to move all existing parts to Legacy, and introduce new switchable parts.

Also took a look at RO, where RealFuels is a dependency - so using a full Firespitter is truly out of place. A better approach would be to use a minimal code clone for those that don't use RO, and hand control over to RealFuels otherwise (which is already being done). Part incompatibility is a non-issue in this case, since RO introduces changes so drastic that a new game is a must.

Therefore OK to close IMO.

[JPLRepo]

Yes old parts should be legacy/still available or old saves get broken.
I will discuss with RO post- 1.2 release as to the best way forward.
I also forgot to mention that really with the Editor Filter that I implemented if this is that necessary as it seems the original motivation was simply that there were a lot of parts in the parts picker/ Utilities section. Parking this until post 1.2

[JPLRepo]

I have someone currently re-texturing the parts.
Also the format of the TACGenericResourceConverter has changed to stock format.
Some of the other changes are no longer appropriate either as I had already done them. (such as move DLLs).