libtouch_gui 1.02:

- fix compiler warnings
md5sum calculation of zip file installed from menu

- port md5 digest from teamwin
6.20.1
custom DirName and BaseName implementation

- basename and dirname are plateform dependant, not thread safe and can modify passed argument
- libc bionic used in Android fixes parts of it by calling basename_r and dirname_r thread safe implementation
- however, dirname still can modify passed pointer
--> rely on in-code functions instead of libgen implementations
--> modify dirname_r to never modify passed argument
6.20.3 / libtouch_gui 1.03

- make use of new DirName / BaseName functions
- cleanup formatting and code to free some resources
add missing vk res
Merge branch 'cm-11.0' of github.com:PhilZ-cwm6/philz_touch_cwm6 into cm-11.0

Merged changes from upstream