Allow lib segment to use dict

[hensldm]

This allows the lib segment to be used as a dictionary.

The following options are allowed:

• object: The name of the object file to link from the archive
• section: The section of the object file to link from the archive
• vram: Allows to specify the vram (important for linking bss from an archive)

Note: I'm wondering if instead of allowing to specify the section we should instead have different segments all together like bin? (e.g. textlib, datalib, rodatalib, bsslib)

Note 2: I uped the version number and added to changelog, but this no means needs a release yet. We could add to it further. Not sure if you would prefer this PR to some kind of dev branch instead?

[AngheloAlf]

CI will be happy when #340 is merged