feat: add on chain blueprint class, its serialization, and a method to create the tx from the wallet

[pedroferreira1]

Acceptance Criteria

• Create On Chain Blueprint class with object serialization methods.
• Create method in the wallet facade to create an ocb transaction.
• Add integration tests for creating and executing nano contract methods from an ocb.

Note: the integration tests will only succeed after we release a new docker image for tx mining service and hathor core with ocb support (and update the docker-compose with them).

[codecov]

Codecov Report

Attention: Patch coverage is 7.27273% with 51 lines in your changes missing coverage. Please review.

Project coverage is 66.66%. Comparing base (c184bbd) to head (b564de9).

Files with missing lines	Patch %	Lines
src/nano_contracts/on_chain_blueprint.ts	0.00%	32 Missing ⚠️
src/new/wallet.js	0.00%	13 Missing and 4 partials ⚠️
src/utils/transaction.ts	50.00%	2 Missing ⚠️

❌ Your patch check has failed because the patch coverage (7.27%) is below the target coverage (70.00%). You can increase the patch coverage or adjust the target coverage.
❌ Your project check has failed because the head coverage (66.66%) is below the target coverage (75.00%). You can increase the head coverage or adjust the target coverage.

❗ There is a different number of reports uploaded between BASE (c184bbd) and HEAD (b564de9). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (c184bbd)	HEAD (b564de9)
	2	1

Additional details and impacted files

@@             Coverage Diff             @@
##           master     #811       +/-   ##
===========================================
- Coverage   80.77%   66.66%   -14.11%     
===========================================
  Files          86       87        +1     
  Lines        6594     6645       +51     
  Branches     1420     1436       +16     
===========================================
- Hits         5326     4430      -896     
- Misses       1255     2130      +875     
- Partials       13       85       +72     

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