OpenSYW 0.2

Windows: download the .exe installer (or the portable .zip) and run OpenSYW.
On first launch it asks for your copy of Seven Years War (the folder holding syw.exe) and converts its
art, sounds and maps. The original game files are not included.

What's Changed

• Uiscale by @iakraptis in #16
• better gathering by @iakraptis in #17
• refactor of yamls by @iakraptis in #18
• Weapons: common bases, per-faction weapons; relax bot test by @iakraptis in #19
• naval ai by @iakraptis in #20

Full Changelog: 0.1...v0.2