XBee: Update input states on IS command response

[Shulyaka]

When the response on IS command is received, update the states of analog and digital inputs.

[coveralls]

Pull Request Test Coverage Report for Build 3504974193

• 4 of 4 (100.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.009%) to 82.93%

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Totals
Change from base Build 3503865797:	0.009%
Covered Lines:	6374
Relevant Lines:	7686

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💛 - Coveralls

[codecov-commenter]

Codecov Report

Base: 82.92% // Head: 82.93% // Increases project coverage by +0.00% 🎉

Coverage data is based on head (b4c221c) compared to base (8d0bcc6).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@           Coverage Diff           @@
##              dev    #1940   +/-   ##
=======================================
  Coverage   82.92%   82.93%           
=======================================
  Files         246      246           
  Lines        7682     7686    +4     
=======================================
+ Hits         6370     6374    +4     
  Misses       1312     1312           

Impacted Files	Coverage Δ
zhaquirks/xbee/__init__.py	95.04% <100.00%> (+0.10%)	⬆️

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