feat: add query to look up captures near a particular lat lon

[gwynndp]

The user can now query and endpoint on the Query API to get the captures within a certain distance of a particular latitude and longitude.

Example:
/v2/captures/location?lat=38.365171398&lon=-122.511260162&deviation=0.02

Should return 36 captures from user gwynn

NOTE:

• I originally tried to include the ability to query by session id but the knex syntax is conflicting with the raw SQL syntax

[gwynndp]

@ZavenArra @Kpoke Hopefully this will help with the data-crunching. Please let me know if there are any changes.