Add the spdlog C++ logger support to Lightning

[maliasadi]

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[github-actions]

Hello. You may have forgotten to update the changelog!
Please edit .github/CHANGELOG.md with:

• A one-to-two sentence description of the change. You may include a small working example for new features.
• A link back to this PR.
• Your name (or GitHub username) in the contributors section.

[codecov]

Codecov Report

Attention: Patch coverage is 45.83333% with 13 lines in your changes missing coverage. Please review.

Project coverage is 94.14%. Comparing base (e57918c) to head (9409bf2).

Files	Patch %	Lines
pennylane_lightning/core/src/utils/Logger.hpp	23.52%	13 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #781      +/-   ##
==========================================
+ Coverage   92.23%   94.14%   +1.90%     
==========================================
  Files         126      110      -16     
  Lines       18490    15824    -2666     
==========================================
- Hits        17055    14898    -2157     
+ Misses       1435      926     -509     

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