Generate APRS Passcode and send it if the option is turned on

[avryhof]

No description provided.

[codecov]

Codecov Report

Merging #4 into master will decrease coverage by 9.32%.
The diff coverage is 62.5%.

@@            Coverage Diff             @@
##           master       #4      +/-   ##
==========================================
- Coverage   86.71%   77.39%   -9.33%     
==========================================
  Files           3        3              
  Lines         128      146      +18     
==========================================
+ Hits          111      113       +2     
- Misses         17       33      +16

Impacted Files	Coverage Δ
ambient_aprs/ambient_aprs.py	76.08% <62.5%> (-9.75%)	⬇️

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