Generate patrol tracks

[doneill]

Proposed Changes

• Add PatrolTracks function
• Add PatrolByID function
  • Add respective type structs
• Add new patrol --tracks flag
  • Flag take patrol id as string value and passes to PatrolByID function
  • Generates geojson file using serial number in naming
• Update tests

Expectation:
Usage:

• List patrols: erpatrols --days 7
• Get patrol tracks: er patrols --track {patrol id}

Tests Added:

• TestPatrolByID - Tests patrol by ID functionality with:
  • Successful response with complete patrol data
  • Active patrol without end time/location
  • Error handling for non-existent patrols
• TestPatrolTracks - Tests patrol tracks functionality with:
  • Successful tracks response with GeoJSON LineString
  • Empty tracks response
  • Error handling for invalid subjects