TODO

- ~~check return value of functions~~
- ~~integrate unit testing~~
- add more functions
- this readme
- remove path from CMakeLists.txt
- include abseil flags for unit testing
- ~~improve tests (images, generating images etc.)~~
- clear redundant includes
- check if security policy can be stricter
- ~~use addDirectoryAt instead of addDirectory~~
- ~~modify tests assertions~~
- ``add useful prints to unit tests``