substratum theme engine

Nov 10, 2018

v1010 changelog:
- Correctly hide unsupported options in Sungstromeda mode
- Fix a frequently occuring crash in Manager tab

Older changelogs:
v1009:
- Support Samsung Pie beta with Andromeda mode
- Fix profiles crash for N users

v1008:
- Allow overlays to compile against split APKs
- Fix licensing issues
- Handle some more places which could trigger crashes