MAINT/API: Fix Table references in latest version of cogent3, simplify API of model for build and fit tree apps

[rmcar17]

No description provided.

[coveralls]

Pull Request Test Coverage Report for Build 14922810226

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
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• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 37 of 37 (100.0%) changed or added relevant lines in 6 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.02%) to 98.933%

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Totals
Change from base Build 14875346148:	0.02%
Covered Lines:	1205
Relevant Lines:	1218

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💛 - Coveralls