Add LunarCrush feature source

[taoshi-mbrown]

Taoshi Pull Request

Description

Adds a LunarCrush feature source, new features, and unit tests.

Related Issues (JIRA)

TE-55 Add LunarCrush to FSC

Checklist

• I have tested my changes on testnet.
• I have updated any necessary documentation.
• I have added unit tests for my changes (if applicable).
• If there are breaking changes for validators, I have (or will) notify the community in Discord of the release.

Reviewer Instructions

N/A

Definition of Done

• Code has been reviewed.
• All checks and tests pass.
• Documentation is up to date.
• Approved by at least one reviewer.

Checklist (for the reviewer)

• Code follows project conventions.
• Code is well-documented.
• Changes are necessary and align with the project's goals.
• No breaking changes introduced.

Optional: Deploy Notes

N/A