pcx: multiple fixes
- Fix wrong RGB channel order if image format is other than (A)RGB32 - Write right resolution - Set right resolution on image load - Return false on write error - Save images with depth greater than 24-bits
- Fix wrong RGB channel order if image format is other than (A)RGB32 - Write right resolution - Set right resolution on image load - Return false on write error - Save images with depth greater than 24-bits
mentioned in commit 91d3bd52