Corvid v1.0

• Switched from CxFreeze to PyInstaller to build the tool
• Rewrote the model converter
• Rewrote the skybox conversion process
• Added support for models with extra skins
• Added support for Call of Duty 2 and Call of Duty 4
• Ropes now get converted as curve patches for CoD 4 and CoD 2
• Added support for Garry's Mod addons
• Added an option to convert brushes as plain brushes instead of patches (still an experimental feature that is likely to be removed)
• Changed the way assets are named upon being exported to make sure there won't be any files overwriting ones with similar names
• Added an option to change the size of the map
• Added support for minimaps/radars
• Added support for bomb site triggers so they can be used in Search and Destroy
• Skybox brushes, sun volumes and other necessary brush entities are now automatically generated
• Improve gloss ranges for Black Ops 3