Swift Package Manager 5.3 support: Swift and Objective-C library

[lancy-mega]

• Updated the SPM Support.
• Support for Objective-C library as SPM.

[dkcas11]

@MatthewYork Any chance this could be merged so your library works with SPM again? 🙂

[dhoerl]

Sure would be nice if it would get merged so I could use SWP!

[kzlukosky]

Agreed, I was just looking migrating to SPM for this and sadly with the current release it is not possible.