Add basic clusters to both coordinator endpoints

[puddly]

"Fixes" #72 by allowing ZHA to poll the coordinator when it erroneously considers it offline. The Basic cluster is also mandatory.

[codecov-commenter]

Codecov Report

Merging #93 (63bb2a6) into dev (06af078) will increase coverage by 0.02%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##              dev      #93      +/-   ##
==========================================
+ Coverage   98.75%   98.77%   +0.02%     
==========================================
  Files          44       44              
  Lines        3768     3768              
==========================================
+ Hits         3721     3722       +1     
+ Misses         47       46       -1     

Impacted Files	Coverage Δ
zigpy_znp/zigbee/application.py	96.73% <ø> (+0.19%)	⬆️

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