Add installation guide for lib

[Shikaree68]

Too hard to understand how correctly build and install with all components included. Guide in readme.md will be perfect!

[BurningEnlightenment]

Are you trying to build with CMake or make? Usage of the former should be straight forward:

cmake -B build
cmake --build build --target install

Refer to the cmake-docs for specifying an installation directory, the generator or the build configuration type (Debug/[…]/Release) during the configure step (the first command).

[Shikaree68]

installed like this. Also have question can i get it through apt-get?