🕙 Use unix epoch to generate ticks

[rkorsak]

Fixes #190

Description

• Updates the utils.to_ticks function to use the unix epoch (seconds since January 1, 1970 UTC)
• Replaces the use of datetime.utcnow with datetime.now, as utcnow is considered harmful and ironically produces the wrong epoch timestamp.

Note: sample data will need to be regenerated, but we have several other hashing/format changes coming and should address that in one sweep.

Testing

Unit tests for utils.to_ticks have been augmented to cover more flavors of datetime.

Checklist

🚨Please review the guidelines for contributing to this repository.

• 🤔 CONSIDER adding a unit test if your PR resolves an issue.
• ✅ DO check open PR's to avoid duplicates.
• ✅ DO keep pull requests small so they can be easily reviewed.
• ✅ DO build locally before pushing.
• ✅ DO make sure tests pass.
• ✅ DO make sure any new changes are documented.
• ✅ DO make sure not to introduce any compiler warnings.
• ❌AVOID breaking the continuous integration build.
• ❌AVOID making significant changes to the overall architecture.

💚 Thank you!

[keithrfung]

looks good to me.

Wouldn't mind second review here @AddressXception

[keithrfung]

Appreciate the verbage here.