Ethpy interface fixes

[slundqui]

• Adds cache to getting read interface from read write interface.
• Adds known (but no special handling) hyperdrive kinds to read write interface.

[wakamex]

some day we may want to import the HyperdriveKind enum outside of read_interface.py in which case defining it separately would be nice, but that day isn't today

[codecov]

Codecov Report

Attention: Patch coverage is 83.33333% with 3 lines in your changes missing coverage. Please review.

Project coverage is 81.62%. Comparing base (33ed861) to head (cc61dd8).

Files	Patch %	Lines
...gent0/ethpy/hyperdrive/interface/read_interface.py	76.92%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1645      +/-   ##
==========================================
+ Coverage   81.33%   81.62%   +0.28%     
==========================================
  Files          98       98              
  Lines        7406     7412       +6     
==========================================
+ Hits         6024     6050      +26     
+ Misses       1382     1362      -20     

Flag	Coverage Δ
unittests	81.62% <83.33%> (+0.28%)	⬆️

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