Add PyTorch Version of VAE, AE, SO_GAAL based on the DL base detector && Fix some bugs in DL base detector.

[RaymondY]

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[coveralls]

Pull Request Test Coverage Report for Build 9375439553

Details

• 507 of 521 (97.31%) changed or added relevant lines in 9 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.1%) to 94.047%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
pyod/test/test_vae.py	35	36	97.22%
pyod/test/test_so_gaal_new.py	75	77	97.4%
pyod/models/so_gaal_new.py	78	82	95.12%
pyod/models/base_dl.py	115	122	94.26%

Totals
Change from base Build 9328641231:	0.1%
Covered Lines:	9306
Relevant Lines:	9895

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💛 - Coveralls