Add flush house and improve coverage of actor_base

[codecov[bot]]

Codecov Report

Merging #97 (05b486b) into main (e8a89c7) will increase coverage by 0.10%. The diff coverage is 98.02%.

:exclamation: Current head 05b486b differs from pull request most recent head 1e1a0f0. Consider uploading reports for the commit 1e1a0f0 to get more accurate results

@@            Coverage Diff             @@
##             main      #97      +/-   ##
==========================================
+ Coverage   95.75%   95.85%   +0.10%     
==========================================
  Files         192      194       +2     
  Lines        8241     8348     +107     
==========================================
+ Hits         7891     8002     +111     
+ Misses        350      346       -4     

Impacted Files	Coverage Δ
test/utils.py	92.03% <70.00%> (-1.16%)	:arrow_down:
gw_spaceheat/actors/home_alone.py	97.14% <100.00%> (-0.30%)	:arrow_down:
gw_spaceheat/actors/scada.py	93.92% <100.00%> (+0.73%)	:arrow_up:
gw_spaceheat/flush_house.py	100.00% <100.00%> (ø)
test/actors/test_actor_base.py	100.00% <100.00%> (ø)
test/actors/test_home_alone.py	100.00% <100.00%> (ø)
test/actors/test_scada.py	100.00% <100.00%> (ø)
test/test_flush_and_load_house.py	100.00% <100.00%> (ø)
gw_spaceheat/actors/boolean_actuator.py	87.50% <0.00%> (-5.56%)	:arrow_down:
... and 3 more

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