Add TiDE modules and implement it as an imputation model

[WenjieDu]

What does this PR do?

1. fixing Add TiDE #393;

Before submitting

• This PR is made to fix a typo or improve the docs (you can dismiss the other checks if this is the case).
• Was this discussed/approved via a GitHub issue? Please add a link to it if that's the case.
• I have commented my code, particularly in hard-to-understand areas.
• I have written necessary tests and already run them locally.

[coveralls]

Pull Request Test Coverage Report for Build 9064065136

Details

• 190 of 193 (98.45%) changed or added relevant lines in 8 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.3%) to 83.606%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
pypots/imputation/tide/model.py	67	70	95.71%

Totals
Change from base Build 9058842458:	0.3%
Covered Lines:	9292
Relevant Lines:	11114

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💛 - Coveralls