Fix: (SSIM) propagate device if gaussian_kernel is False, add test

[krshrimali]

What does this PR do?

Attempts to fix #1148 - summary of the changes:

1. The device, dtype and channel are now propagated if gaussian_kernel is False.
2. A test has been added as well.

Note to reviewers: I'm away from my GPU machine, so couldn't test this yet, I'll keep an eye on the CI, else I'll test it on my machine by tomorrow. (Tested on a GPU machine, all tests pass locally)

Before submitting

• Was this discussed/approved via a Github issue? (no need for typos and docs improvements)
• Did you read the contributor guideline, Pull Request section?
• Did you make sure to update the docs?
• Did you write any new necessary tests?

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[codecov]

Codecov Report

Merging #1149 (2d6cb05) into master (19abf5e) will decrease coverage by 52%.
The diff coverage is 100%.

@@           Coverage Diff            @@
##           master   #1149     +/-   ##
========================================
- Coverage      94%     42%    -52%     
========================================
  Files         185     185             
  Lines        8389    8389             
========================================
- Hits         7880    3539   -4341     
- Misses        509    4850   +4341     

[Borda]

@justusschock any other alternative for prod as it was added to math at 3.8, and we need to support 3.7,
see: https://stackoverflow.com/a/63737286/4521646