Hi

Arduino projects allow for code in the project folder and in (or below) a folder called \src.

If you install your library into the standard arduino "documents\arduino\libraries" folder and remove it from below the project then you will have an arduino ide compatible solution. 

To include the lib in your code do not use any path reference, just #include <myLib.h>

note: If you want to then use a local copy of the library the "Add Library" menu provides workflows that do that for you.

When adding/moving a library using windows explorer click the "Rescan" option in visual micro or restart the IDE