Setup Factory LZMA compression feature

[slota]

Please update lzma compressor to version 4.49 (or upper). This version adds support for multi-threading, which can speed up the compression process by 50% or more on systems with multiple processor cores, and 20% or more on systems with single-core Intel processors featuring Hyper-Threading Technology.

[IdeasVacuum]

The slowness of compression/decompression is a problem for large projects, this definitely would be a great enhancement.

[Darryl]

Thanks, we'll look into that.
REF: SUF-2

[jassing]

Since you're shelling out to lzma.exe -- can you open up the command line as an option?
I updated the latest lzma.exe and some of the higher compressions now fail -- it'd be nice to be able to have full control over the lzma command line.

[Darryl]

Appended suggestion to submission.