grep_mem for windows (WIP).

This is the memory grepper library for windows, it just calls the C
function to get all the memory regions and iterates trough them, but the C
part isn't calling readProcessMemory yet.
Rename example
Add memsearch example
Add procMems test
Run memsearch in goroutines
Find in range implementation
Memsearch now can grab an arbitray buffer from mem

It is just for debugging, but it is useful.