Extend EmberStatus -> sl_Status mapping

[puddly]

A recent Home Assistant issue mentioned a warning regarding EmberStatus.LIBRARY_NOT_PRESENT, which needed a mapping to sl_Status.NOT_AVAILABLE. I've mapped I think the remaining statuses, allowing us us to use sl_Status internally within bellows.

I think in the future we can minimize the use of this function by moving code shared between multiple EZSP versions into version-specific handlers.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.54%. Comparing base (9e31738) to head (7eb6a05).
⚠️ Report is 2 commits behind head on dev.

Additional details and impacted files

@@           Coverage Diff           @@
##              dev     #707   +/-   ##
=======================================
  Coverage   99.53%   99.54%           
=======================================
  Files          58       61    +3     
  Lines        4128     4147   +19     
=======================================
+ Hits         4109     4128   +19     
  Misses         19       19           

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