To The Sky Build 7

There are a lot of changes.

- Added c2_2

- Redesigned Li

- Reworked sprites system

- Reworked c1_5 CG

- Added music

- Updated to Ren'Py 7.6.3

- Removed c1_5 sex scene

- Reworked splash screen

- Removed video folder

Sorry for not working on this project for over a year. Without going into detail, my brain decided to not like existing. Add on top of that general burnout and it was a recipe for disaster. But I hope to keep working on this project.