add execution cost data to transactions

[rafaelcr]

Description

This change captures execution cost data from raw node transactions and saves it as columns in the PostgreSQL txs table. It also exposes this new data to transaction API endpoints so users can see them.

Closes #734

Type of Change

• New feature
• Bug fix
• API reference/documentation update
• Other

Does this introduce a breaking change?

No

Are documentation updates required?

Only schema changes which will be automated into docs

Testing information

Covered by unit tests

Checklist

• Code is commented where needed
• Unit test coverage for new or modified code paths
• npm run test passes
• Changelog is updated
• Tag 1 of @kyranjamie or @zone117x for review

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[codecov]

Codecov Report

Merging #737 (fd64ee5) into develop (e37b5af) will increase coverage by 0.79%.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##           develop     #737      +/-   ##
===========================================
+ Coverage    65.52%   66.32%   +0.79%     
===========================================
  Files           79       87       +8     
  Lines         8049    10155    +2106     
  Branches      1257     1659     +402     
===========================================
+ Hits          5274     6735    +1461     
- Misses        2770     3414     +644     
- Partials         5        6       +1     

Impacted Files	Coverage Δ
src/api/controllers/db-controller.ts	74.56% <ø> (ø)
src/datastore/common.ts	77.21% <ø> (-1.43%)	⬇️
src/event-stream/core-node-message.ts	94.44% <ø> (ø)
src/migrations/1584619633448_txs.ts	100.00% <ø> (ø)
src/datastore/postgres-store.ts	86.90% <100.00%> (+2.77%)	⬆️
src/index.ts	0.00% <0.00%> (ø)
src/tests-tokens/setup.ts	0.00% <0.00%> (ø)
src/migrations/1621511823381_nft-metadata.ts	100.00% <0.00%> (ø)
src/migrations/1621511832113_ft-metadata.ts	100.00% <0.00%> (ø)
... and 10 more

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[zone117x]

Quick turnaround! LGTM!

[blockstack-devops]

🎉 This PR is included in version 0.65.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• npm package (@latest dist-tag)
• GitHub release

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