Add extra project advanced config option for new point collection: point, polygon, polyline

[spwoodcock]

Is your feature request related to a problem? Please describe.

• We can currently add a new point in FMTM and have it injected as the new_feature field in the XLSForm.
• The XLSForm field is currently geopoint.
• Ideally we can have this configurable, so we inject the field as geotrace (polygon) or geoshape (polygon), and allow the user to draw the relevant geometry in FMTM to inject.

This is a follow up issue from #1915

Describe the solution you'd like

• Add a config option for this during project creation.
• Add a db field for projects to capture this, as an enum with three options.
• Based on the enum value in the project JSON in the frontend, we change the terradraw geom type: point, polyline, polygon.
• We may need to add buttons for deleting and modifying vertices if drawing more complex polygons.
• The update_form function in osm-fieldwork should have the option to specify the new geom type, so the XLSForm has the relevant field type.

Additional context

• This may be dependent on moving the mandatory XLSForm questions sheet out of the XLS file and directly into code (to make things easier).