Sable's Grimoire 1.06

Adds a route for Tix. List of changes: -4 new CGs (+1 variation to an existing CG) -2 new music tracks -2 new backgrounds -1 new sprite -5 new achievements -5 new choices -2 new endings -3 more checkpoints on the route map -Updated game engine, with (most) sprites recoded in the engine's new format. This seems to have fixed the lag which sometimes manifested immediately after loading a checkpoint on the route map, and should lead to minor performance improvements in general. -Background/CG transition fixes. This problem might not have actually made it into any live builds. I only noticed this recently after a full recompile on the development machine. Either way, I found five or six (out of ~800) scene transitions which ended prematurely. This is now fixed. -A few typo fixes and some minor rewording. The most wide-spread change is normalizing the way Drakan refers to her mother. The spelling is now always "Mama" instead of going back and forth between "Mama" and "Momma". If you're skipping through scenes you've already played and are randomly stopped on Drakan's lines, this is why. -Music added/changed. There were (and still are) occasional moments with lengthy pauses in the music. Some of these pauses have been shortened or removed. In a few cases, the actual track being played has also changed to better suit the mood of the scene. [From [url=https://zetsuboushita.itch.io/sables-grimoire/devlog/63819/tixs-route-released]Itch.io[/url]]