feat: add model spec support to HMMClassifier.__init__

[eonu]

Add model spec support to HMMClassifier.__init__

• Adds the ability to specify a HMM variant and configuration in HMMClassifier.__init__.
• This enables the use of sequentia.model_selection on HMMClassifier objects.

Checklist

• I have added new tests (if necessary).
• I have ensured that tests and coverage are passing on CI.
• I have updated any relevant documentation (if necessary).
• I have used a descriptive pull request title.

[coveralls]

Pull Request Test Coverage Report for Build b4893f34-0087-4d48-afbd-b35b1e6c834c

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 20 unchanged lines in 2 files lost coverage.
• Overall coverage increased (+0.1%) to 82.59%

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Files with Coverage Reduction	New Missed Lines	%
model_selection/_search.py	9	89.02%
models/hmm/classifier.py	11	91.13%

Totals
Change from base Build 04ffbfc8-bf8b-4118-813f-30993dc79387:	0.1%
Covered Lines:	1167
Relevant Lines:	1413

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💛 - Coveralls