feat: Add activities info to workout samples

[thalysviana]

Description

This PR includes the following changes:

• Adds workout activity support. Now it's possible to fetch activity information from samples and save these activities on newly created workouts
• Adds support to multiple activities in a single workout. (E.g. swimBikeRun)

Fixes #

Fixes issue with SwimBikeRun, Transition, UnderwaterDiving raw values. Updated their values to the correct ones and added the new UnderwaterDiving case.

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have made corresponding changes to the documentation
• I have checked my code and corrected any misspellings

[GGGava]

LGTM, amazing job man, thank you very much :)

For the next PRs can you please add some testing instructions? Some HK documentation links would also be amazing.

Non-blocking: Could you take a quick look at what is the effort to add activity filters for the workout queries? (last section of this). If it's quick & easy, could be nice to add this to this PR, but if it would take some time, please add a reminder on the project board.