Consolidate registries into generic and specific

[dalonsoa]

Rather than repeating the same structure for each registry, a common one has been setup that uses generic registry, signature and registrator name, and then the specific one just call this generic one with the appropriate inputs.

[codecov[bot]]

Codecov Report

Merging #233 (d1f5e61) into develop (3ad170d) will decrease coverage by 0.01%. The diff coverage is 100.00%.

@@             Coverage Diff             @@
##           develop     #233      +/-   ##
===========================================
- Coverage    46.03%   46.01%   -0.02%     
===========================================
  Files           85       85              
  Lines         9120     9118       -2     
===========================================
- Hits          4198     4196       -2     
  Misses        4922     4922              

Impacted Files	Coverage Δ
solcore/registries.py	100.00% <100.00%> (ø)

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