feat(x/ecocredit): default values for new ORM params

[ryanchristo]

Description

Closes: #1158

This pull request updates default genesis values to include a default credit type and a default allowed denom to make it easier for starting a local testnet and then testing against that local testnet.

In order to support a default allowed denom (a marketplace type), a separate genesis package was created in the root of the module directory (previously in core - was probably not the right place anyways). Import cycles were violated in module and in the root of the ecocredit module so a separate genesis package was the simplest solution.

Validation functions for class, class issuers, project, and batch were moved to respective type files for each within core.

Manual tests: https://hackmd.io/WYHeLuIQSKOnLlJVGsFVnw (including upgrade tests just to be sure this does not affect the upgrade although these changes only affect starting a new chain without a genesis file as they should).

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Author Checklist

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• included the correct type prefix in the PR title
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• included the necessary unit and integration tests
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• confirmed the correct type prefix in the PR title
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[ryanchristo]

No changes here. Moved from core/genesis.go (and what is now genesis/genesis.go).

[ryanchristo]

No changes here. Moved from core/genesis.go (and what is now genesis/genesis.go).

[ryanchristo]

No changes here. Moved from core/genesis.go (and what is now genesis/genesis.go).

[ryanchristo]

No changes here. Moved from core/genesis.go (and what is now genesis/genesis.go).

[aleem1314]

lgtm

[codecov]

Codecov Report

Merging #1293 (9fdbad4) into master (727d41a) will decrease coverage by 0.02%.
The diff coverage is 47.74%.

@@            Coverage Diff             @@
##           master    #1293      +/-   ##
==========================================
- Coverage   77.51%   77.48%   -0.03%     
==========================================
  Files         213      219       +6     
  Lines       16084    16128      +44     
==========================================
+ Hits        12467    12497      +30     
+ Misses       2613     2612       -1     
- Partials     1004     1019      +15     

Flag	Coverage Δ
experimental-codecov	77.59% <47.74%> (-0.03%)	⬇️
stable-codecov	77.18% <47.74%> (-0.10%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
x/ecocredit/core/params.go	58.13% <ø> (-5.13%)	⬇️
x/ecocredit/core/types_class_issuer.go	0.00% <0.00%> (ø)
x/ecocredit/core/types_batch.go	7.69% <7.69%> (ø)
x/ecocredit/core/types_class.go	9.09% <9.09%> (ø)
x/ecocredit/core/types_project.go	9.09% <9.09%> (ø)
x/ecocredit/server/basket/query_balance.go	55.55% <45.45%> (-22.23%)	⬇️
x/ecocredit/genesis/genesis.go	52.19% <57.14%> (ø)
x/ecocredit/module/module.go	59.15% <60.00%> (-1.17%)	⬇️
x/ecocredit/server/basket/query_balances.go	63.33% <66.66%> (-0.96%)	⬇️
x/ecocredit/server/basket/query_basket.go	57.57% <66.66%> (-0.49%)	⬇️
... and 8 more