[AI-5] FDM v3 support

[ghost]

https://cognitedata.atlassian.net/browse/AI-5

Problem / User story
Data modeling (FDM GA) is coming, and Granafa should support what it did on top of DMS v2 and Templates

Solution
Refactored DMS v2 glow to fit DMS v3 (data modeling in CDF)

Affected Resource types
FDM

Changes to datasource JSON model
FDM, breaking change to v2 (removed in favor for the GA flow)

Has documentation been updated
NO, please help and educate me how 🙏

Have tests been updated?
yes

Screenshots and examples
Screenshots and example query if applicable

Using platypus on greenfield (ask for full credential from @dlcognite ), use the above Data Model and version, with the following query
data model: Sample_Data_Model_With_Types in space Sample
version: 3
query:

query MyQuery {
  listWithPrimitives {
    items {
      timeseries {
        __typename
        externalId
      }
    }
  }
}

[polomani]

@dlcognite hi, thanks for the contribution!
I hope it's not time critical? We are a bit packed this-next week due to the cycle end, hope we can review it after?

Meanwhile, could you add a screenshot to the folder, so we can include it in the plugin metadata:
https://grafana.com/docs/grafana/latest/developers/plugins/metadata/ (see screenshots)

also, what's the project I can test it on?

[ghost]

No worries yet! We are waiting for a few features in the backend still, will ping when I need review!

[ghost]

working with timeseries

[ghost]

@polomani good sir, how do i document plugins and update screenshots?

[ghost]

also fixed the header style, was giving me anxiety 😓

[polomani]

@dlcognite the documentation is moved here https://docs.cognite.com/cdf/dashboards/guides/grafana/getting_started, so we don't necessarily have to merge the at the same time, but at least have some draft maybe?
Considering that this is GA soon, it's should be not a bad idea to document it officially?

Also, maybe it's time to add one-two unit tests for the FlexibleDataModellingDatasource.ts

[polomani]

@dlcognite regarding screenshots, here are the specs:
https://grafana.com/docs/writers-toolkit/writing-guide/image-guidelines/#screenshot-guidelines-1

Just put them in the images folder, I can help with referencing it in the plugin.json afterwards (or just look here https://grafana.com/docs/grafana/latest/developers/plugins/metadata/#properties-5)

[muradsater]

Should we remove "Preview" from Data Models and enable by default? It will cause lots of questions if it's hidden behind the toggle in data source settings.

[polomani]

Nice work!