Fix linking

[mratsim]

Currently we use a mix of dynamic linking with passL: -lc10 -ltorch_cpu and static linking with {.link.}

We want to cleanly use dynamic linking for starter as the linker step is very slow and c10/torch have no static lib provided, at least on Linux.

So we want either dynlib or the passL strategy but without any {.link.}.
Furthermore we need to check where we need the library o minimize path issues, is it nimble bin or does it have a lib folder?