Convert command types to dictionaries

[puddly]

I've converted the types of every command schema for EZSP v5-v14 from a tuple of types to a dict of types. Only EZSPv4 is left. There is currently a compatibility shim to handle tuple schemas but it will be removed once v4 is finished.

This really helps with log file and code readability. Future command sending syntax will allow mixing and matching args and kwargs but bellows will migrate to kwarg-only syntax.

[codecov]

Codecov Report

Attention: Patch coverage is 96.92308% with 2 lines in your changes missing coverage. Please review.

Project coverage is 99.13%. Comparing base (64ba03d) to head (16f0e41).

Files	Patch %	Lines
bellows/ezsp/protocol.py	92.30%	1 Missing ⚠️
bellows/zigbee/application.py	90.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##              dev     #636      +/-   ##
==========================================
- Coverage   99.15%   99.13%   -0.03%     
==========================================
  Files          50       50              
  Lines        3447     3456       +9     
==========================================
+ Hits         3418     3426       +8     
- Misses         29       30       +1     

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