Groupe open/panoramax streetview support

[nrc97]

Description

This PR introduces support for Panoramax as an additional Street View provider in MapStore2. Users can now visualize street‑level imagery using Panoramax alongside existing providers. The feature includes configuration options, i18n strings, attribution handling, and provider selection at runtime.

Please check if the PR fulfills these requirements

• The commit message follows our guidelines: https://github.com/geosolutions-it/MapStore2/blob/master/CONTRIBUTING.md
• 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?
Panoramax is not supportted as streetview provider

What is the new behavior?
We can now use panoramax as provider for the streetview plugin.

Breaking change

• No

Other useful information

Panoramax OpenAPI Documentation: https://docs.panoramax.fr/api/api/openapi/
Panoramax Viewer Documentation: https://docs.panoramax.fr/web-viewer/#basic-usage

[tdipisa]

@nrc97 thank you so much for contributing with this. We will review as soon as possible.

[tdipisa]

Hi @nrc97 if you are still working on this, I kindly ask you to convert this PR to a Draft PR to avoid reviewing if you haven't completed yest the development. Thank you so much again for the collaboration and the contribution.

[Gaetanbrl]

Is this a tool dedicated to OpenLayers ? (Mapstore offering several map libraries)

[landryb]

Fwiw, i'm not in a position to judge the code itself, but from basic testing against a locally deployed panoramax instance and a locally running mapstore from this PR, this works fine, eg sequences are loaded as MVT from the api, and clicking on the sequence brings up a window showing the picture.

Features are basic (eg no link to the complete sequence, which can be useful, nor filters like on panoramax web viewer), but there's always the link to the original picture in panoramax, so that's fine.

if i had a user-level remark to do, when the streetview window has its default scale (eg 'smallish'), the 'back' arrow is a bit hidden by the licence footer for the image. one has to make the window a bit higher to easily interact with the arrow.

[tdipisa]

Hi @nrc97 if you are still working on this, I kindly ask you to convert this PR to a Draft PR to avoid reviewing if you haven't completed yest the development. Thank you so much again for the collaboration and the contribution.

@nrc97 can we finally schedule a review session for this? Thank you for confirming that.