Add DRAEM anomaly model

[ashwinvaidya17]

Summary

• Add Draem model

How to test

Checklist

• I have added unit tests to cover my changes.​
• I have added integration tests to cover my changes.​
• I have added e2e tests for validation.
• I have added the description of my changes into CHANGELOG in my target branch (e.g., CHANGELOG in develop).​
• I have updated the documentation in my target branch accordingly (e.g., documentation in develop).
• I have linked related issues.

License

• I submit my code changes under the same Apache License that covers the project.
  Feel free to contact the maintainers if that's a concern.
• I have updated the license header for each file (see an example below).

# Copyright (C) 2024 Intel Corporation
# SPDX-License-Identifier: Apache-2.0

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 9 lines in your changes are missing coverage. Please review.

Project coverage is 64.22%. Comparing base (0b572cc) to head (365e817).
Report is 2 commits behind head on develop.

Files	Patch %	Lines
src/otx/algo/anomaly/draem.py	0.00%	9 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #3152      +/-   ##
===========================================
- Coverage    64.39%   64.22%   -0.17%     
===========================================
  Files          259      181      -78     
  Lines        15290    15032     -258     
===========================================
- Hits          9846     9655     -191     
+ Misses        5444     5377      -67     

Flag	Coverage Δ
py310	64.22% <0.00%> (-0.18%)	⬇️
py311	64.22% <0.00%> (-0.17%)	⬇️

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[samet-akcay]

lgtm, thanks