Add create_from_mqtt and make strict types for command init

[edenhaus]

No description provided.

[codecov]

Codecov Report

Merging #319 (44db478) into dev (c2578b3) will increase coverage by 0.30%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##              dev     #319      +/-   ##
==========================================
+ Coverage   75.67%   75.98%   +0.30%     
==========================================
  Files          54       54              
  Lines        2323     2332       +9     
  Branches      456      454       -2     
==========================================
+ Hits         1758     1772      +14     
+ Misses        515      513       -2     
+ Partials       50       47       -3     

Files	Coverage Δ
deebot_client/command.py	92.72% <100.00%> (+2.36%)	⬆️
deebot_client/commands/json/clean_count.py	100.00% <100.00%> (ø)
deebot_client/commands/json/common.py	98.52% <100.00%> (+3.93%)	⬆️
deebot_client/commands/json/fan_speed.py	100.00% <100.00%> (ø)
deebot_client/commands/json/life_span.py	83.87% <100.00%> (-2.62%)	⬇️
deebot_client/commands/json/volume.py	100.00% <100.00%> (+23.52%)	⬆️
deebot_client/commands/json/water_info.py	100.00% <100.00%> (ø)
deebot_client/mqtt_client.py	92.26% <100.00%> (ø)

... and 1 file with indirect coverage changes

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more