Minor update

Made some tweaks to Mentally camouflaged.
You can now have top surgery while committed to Smith.
- The rest of the partners coming soon.
You can now talk to Shae about your modification project.
New artwork.
Made some performance improvements.
Fixed the game not always starting properly on Linux.
Fixed the buying price of Basic amphetamines at the clinic.
Fixed Painted flesh appearing when the relevant skin wasn't on display.
Fixed some typos and other minor bugs; thanks for the reports!