feat(beacons): expose ffi functions to start, stop and subscribe to live location shares

[torrybr]

FFI functions for starting ,stopping and subscribing to Live Location Shares.

Signed-off-by:

Torry Brelsford

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.42%. Comparing base (2d0f873) to head (e9089c6).
Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4578      +/-   ##
==========================================
+ Coverage   85.41%   85.42%   +0.01%     
==========================================
  Files         285      285              
  Lines       32211    32211              
==========================================
+ Hits        27512    27516       +4     
+ Misses       4699     4695       -4     

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[jmartinesp]

Thanks for the changes, I think there might be an issue with unwrapping the beacon_info field, and we shouldn't cause a panic when we can't do it.