[PR example] Support for new Bitcoin

[dimkarakostas]

All Submissions:

• [x] Have you followed the guidelines in our Contributing documentation?
• [x] Have you verified that there aren't any other open Pull Requests for the same update/change?
• [x] Does the Pull Request pass all tests?

Description

Add support for new Bitcoin.

Checklist

/ Keep from below the appropriate checklist for your Pull Request and remove the others /

Update Mapping Support Information Submissions:

New Ledger Support Submissions:

• What mapping information did you add for the new ledger?
  • [x] identifiers
  • [ ] addresses
  • [ ] clusters
  • [ ] legal links
• Did you create a new parser?
  • [ ] If yes, did you create a unit test for the new parser?
  • [x] If no, which parser did you reuse? DefaultParser
• Did you create a new mapping?
  • [ ] If yes, did you create a unit test for the new mapping?
  • [x] If no, which mapping did you reuse? DefaultMapping
• [x] Did you enable the parser for the new ledger in src/parse.py?
• [x] Did you enable the mapping for the new ledger in src/map.py?
• [ ] Did you document support for the new ledger as described in our Contributing documentation?