#12467 Add maximum visible features in current view option for FlatGeobuf layers

[Binabh]

Description

Adds a new option maxFeaturesInView for FlatGeobuf layer. When the value is undefined current functionality works as usual(i.e. load all features)

Please check if the PR fulfills these requirements

• The commit message follows our guidelines: https://github.com/geosolutions-it/MapStore2/wiki/Contributing-to-MapStore
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

What kind of change does this PR introduce? (check one with "x", remove the others)

• Feature

Issue

What is the current behavior?
All features of flatgeobuf in view are loaded
#12467

What is the new behavior?
Provide user interface to input maximum number of features in ToC and catalog. Stop loading features when max value is hit. Works for openlayers and cesium.

Breaking change

Does this PR introduce a breaking change? (check one with "x", remove the other)

• Yes, and I documented them in migration notes
• No

Other useful information

[cla-bot]

In order to contribute to the MapStore project, the CLA (Contributor License agreement) should be sent signed to GeoSolutions. Please consult contributing rules at: https://github.com/geosolutions-it/MapStore2/wiki/Contributing-to-MapStore#contributing-code

[cla-bot]

In order to contribute to the MapStore project, the CLA (Contributor License agreement) should be sent signed to GeoSolutions. Please consult contributing rules at: https://github.com/geosolutions-it/MapStore2/wiki/Contributing-to-MapStore#contributing-code

[cla-bot]

In order to contribute to the MapStore project, the CLA (Contributor License agreement) should be sent signed to GeoSolutions. Please consult contributing rules at: https://github.com/geosolutions-it/MapStore2/wiki/Contributing-to-MapStore#contributing-code