Enable import of Stacked Ensemble MOJO models

[exalate-issue-sync]

Right now Stacked Ensemble MOJOs are not importable because they could contain some models that are not importable (up until recently, e.g. DL models https://0xdata.atlassian.net/browse/PUBDEV-7167)

Let's enable import of SE models and if they include a non-supported model, then produce an error. I think it's too restrictive to do a wholesale disabling of importing based on this.

[exalate-issue-sync]

Pavel Pscheidl commented: SE MOJO import currently makes perfect sense for scoring. This is the easy to add. Only ensembles containing explicitly enabled algorithms will be importables, otherwise an error will be thrown and the user warned.

Showing information about all the algorithms inside is a bigger task.

[exalate-issue-sync]

Pavel Pscheidl commented: Let’s attempt scoring in 3.28.1.2. No model details, scoring only.

[h2o-ops]

JIRA Issue Migration Info

Jira Issue: PUBDEV-7352
Assignee: Pavel Pscheidl
Reporter: Erin LeDell
State: Resolved
Fix Version: 3.30.0.1
Attachments: N/A
Development PRs: Available

Linked PRs from JIRA

#4416