Integrating Google Maps API

[cathli66]

Summary

Integrating Google Maps API into CornellGo's app for our gameplay.
Includes pushing the API key (consider removing in the future as it should be secret information)

• Updated Android's build files to include Google Maps API class
• Changed gameplay_map.dart from Flutter map (old) to Google Maps (new)

Remaining TODOs:

• Update iOS side to work with Google Maps API and test
• Move maps into gameplay page
• Display and zoom to user's current location
• Draw some random circle around a challenge for user testing

Test Plan

Notes

Blockers

• Waiting for DTI Business Leads to check that the Maps SDK is enabled on Google Cloud Console because they set up the account and the map is not showing up

Breaking Changes

[dti-github-bot]

[diff-counting] Significant lines: 78.

[neketka]

Leaks api key