[Enhance] Add Opencv backend support for Visualizer

[Ben-Louis]

Motivation

Modification

BC-breaking (Optional)

Use cases (Optional)

Checklist

Before PR:

• I have read and followed the workflow indicated in the CONTRIBUTING.md to create this PR.
• Pre-commit or linting tools indicated in CONTRIBUTING.md are used to fix the potential lint issues.
• Bug fixes are covered by unit tests, the case that causes the bug should be added in the unit tests.
• New functionalities are covered by complete unit tests. If not, please add more unit tests to ensure correctness.
• The documentation has been modified accordingly, including docstring or example tutorials.

After PR:

• CLA has been signed and all committers have signed the CLA in this PR.

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: -0.25 ⚠️

Comparison is base (896e9d5) 82.25% compared to head (4e56526) 82.00%.

❗ Current head 4e56526 differs from pull request most recent head 24b8059. Consider uploading reports for the commit 24b8059 to get more accurate results

Additional details and impacted files

@@             Coverage Diff             @@
##           dev-1.x    #2283      +/-   ##
===========================================
- Coverage    82.25%   82.00%   -0.25%     
===========================================
  Files          228      230       +2     
  Lines        13387    13613     +226     
  Branches      2268     2313      +45     
===========================================
+ Hits         11011    11163     +152     
- Misses        1862     1913      +51     
- Partials       514      537      +23     

Flag	Coverage Δ
unittests	82.00% <ø> (-0.25%)	⬇️

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see 20 files with indirect coverage changes

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[Tau-J]

LGTM