feat: Add micro benchmarks for register operations

[aaryansinhaa]

This PR modularizes the register_creation_and_initialization benchmark into separate functions for creating and initializing registers.

The change allows for micro-benchmarking and a more granular performance analysis of the two distinct operations. This aligns with the goal of restructuring the benchmarking suite to better identify performance bottlenecks and regressions.

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Changes:

• Introduced four new functions:
  • create_register_net
  • create_register_net_with_backgrounds
  • initialize_register_net
  • initialize_register_net_with_backgrounds
• Updated the BenchmarkGroup structure to create distinct create and initialize benchmark subgroups.

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addresses Issue No #131

[aaryansinhaa]

Hey @Krastanov ,
Please review this PR, I don't get why the checks are failing, I have tested the benchmarks on my local machine, and everything seems to be working fine?