Refactored Metahyper and Its Test Cases

[TarekAbouChakra]

The primary objective of this pull request is to address the issue related to Metahyper sampling an additional configuration.

• Metahyper sampling extra config #42.

Changes Made:

• Modified the Metahyper code to ensure it is in a locked state during execution in multi-threading (previously the _check_max_evaluations function had code that was not in a locked state) to prevent potential race conditions.
• Addressed instances where the internal read function in Metahyper was called twice by optimizing it to read only once to fulfill all purposes.
• Cleared out ConfigInRun data after the completion of configuration evaluation and post hook execution.
• Added sleep times for all locking operations when the lock is unavailable for stability.

Changes in Tests:

• Adopted concurrent.futures as the multi-threading library in the tests, providing better control over processes for improved debugging and scalability when needed.

[eddiebergman]

Heyo @TarekAbouChakra, I just merged #71 which reworked metagyper and converted it to neps.runtime. I'm going to look through these changes and turn it into a new clean PR!