Add more signals

[bynect]

Add the signal requested by #1277 and some more

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 71.91781% with 41 lines in your changes missing coverage. Please review.

Project coverage is 65.58%. Comparing base (73c7f92) to head (884fad3).
Report is 85 commits behind head on master.

Files with missing lines	Patch %	Lines
test/dbus.c	77.57%	24 Missing ⚠️
src/dbus.c	52.77%	17 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1405      +/-   ##
==========================================
+ Coverage   65.32%   65.58%   +0.26%     
==========================================
  Files          50       50              
  Lines        8763     8905     +142     
  Branches     1034     1041       +7     
==========================================
+ Hits         5724     5840     +116     
- Misses       3039     3065      +26     

Flag	Coverage Δ
unittests	65.58% <71.91%> (+0.26%)	⬆️

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[bynect]

I need to add some tests

[fwsmit]

Looks good! Adding some tests is a good idea, yeah.