[WIP] Add detection of libc implementation and its version

[mfranczy]

The PR is still in progress, I am still trying to find more robust approach for this.

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[mfranczy]

Hm, maybe better approach will be to use CGO and execute gnu_get_libc_version and something for musl...

EDIT: but that's not checking the version installed on the host...

[mfranczy]

After intensive research, I didn't find a better way than just parsing the libc.so binaries to find out about the version and the type. I will finish implementation with this design.