Add endpoint to create an entity in existing project for new geometry

[Sujanadh]

What type of PR is this? (check all applicable)

• 🍕 Feature
• 🐛 Bug Fix
• 📝 Documentation
• 🧑‍💻 Refactor
• ✅ Test
• 🤖 Build or CI
• ❓ Other (please specify)

Related Issue

• Feature request to create an entity for new geometry
• Issue: Add extra project advanced config option for new point collection: point, polygon, polyline #1979
• Issue: New map geometry drawn doesn't contain taskID #2105
• Issue Create new geometries / entities from API call to ODK from FMTM (instead of via XLSForm) #2146

Describe this PR

A new endpoint is added to create an entity of newly created geometry before filling out the form for that feature.

Payload

project_id: 62
request body

{
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "properties": {},
      "geometry": {
        "coordinates": [
          [
            [
              85.31660440115547,
              27.739333245325867
            ],
            [
              85.31647342661392,
              27.73925872388513
            ],
            [
              85.31659504583035,
              27.739242163558075
            ],
            [
              85.31672602037202,
              27.739291844531763
            ],
            [
              85.31660440115547,
              27.739333245325867
            ]
          ]
        ],
        "type": "Polygon"
      }
    }
  ]
}

Screenshots

N/A

Alternative Approaches Considered

Did you attempt any other approaches that are not documented in code?

Review Guide

Notes for the reviewer. How to test this change?

Checklist before requesting a review

• 📖 Read the FMTM Contributing Guide: https://github.com/hotosm/fmtm/blob/main/CONTRIBUTING.md
• 📖 Read the HOT Code of Conduct: https://docs.hotosm.org/code-of-conduct
• 👷‍♀️ Create small PRs. In most cases, this will be possible.
• ✅ Provide tests for your changes.
• 📝 Use descriptive commit messages.
• 📗 Update any related documentation and include any relevant screenshots.

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