feat: geospatial opening polygons first steps

[RMCampos]

Description

• Displays the selected opening polygon on the map, if any (from BC GW dataset)
• Displays popup with opening properties, when clicked;
• Displays a simple layer for demo purposes;

Fixes Jira issue SILVA-236

Type of change

• New feature (non-breaking change which adds functionality)

How Has This Been Tested?

Tested locally

Checklist

• I have read the CONTRIBUTING doc
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have already been accepted and merged

Further comments

---

Thanks for the PR!

Any successful deployments (not always required) will be available below.

Backend: https://nr-silva-308-backend.apps.silver.devops.gov.bc.ca/actuator/health
Frontend: https://nr-silva-8-frontend.apps.silver.devops.gov.bc.ca

Once merged, code will be promoted and handed off to following workflow run.
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[RMCampos]

Needs #309 to be fixed first, before merging this one.

[DerekRoberts]

Good job! Really like that you stuck with this tough one. Bonus points for improving the node dependencies. :D

[webgismd]

@RMCampos just a comment on this line

nr-silva/frontend/src/map-services/BcGwWfsApi.tsx

Line 168 in 4e01f54

export const getInitialLayers = async (): Promise<MapLayer | null> => {

it would be good to get confirmation for the business what they would like to do with the 20 layers they want added.. if we add 20 layers as WFS we will start to have performance issue potential. (support WMS calls with leaflet where appropriate will give you default styles that are approved by the data custodian, scale dependencies, better performance -- with GetMap - to display tiles, and GetFeatureInfo to display attributes) -- not endorsing this specific code but as an example -- https://gist.github.com/rclark/6908938 and https://leafletjs.com/examples/wms/wms.html