feat: Make MAX_NET_DETUNING in AHS device capabilities optional and extend field validator utility functions.

[Altanali]

Issue #, if available:

Description of changes:
Make the MAX_NET_DETUNING device capability data point optional for AHS program validation - this is done so the Program validator used for AHS programs with the local simulator can also be used with capabilities derived from QPU capabilities, which don't provide a MAX_NET_DETUNING data point.

Additionally, utility methods validate_max_absolute_slope,validate_time_precision,validate_time_separation,validate_value_precision are added to field validator utilities for use AHS Program validation with Device Capabilities Constants (introduced in BDK).

Testing done:
Tested the newly introduced field validation utility functions.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (a9808f3) to head (20c1b54).

Additional details and impacted files

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  Coverage   100.00%   100.00%           
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  Files           48        48           
  Lines         3802      3821   +19     
  Branches       930       938    +8     
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+ Hits          3802      3821   +19     

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[maolinml]

Just want to remind myself, are these four functions the only things that needs to be moved from the service side to the client side? Also it maybe good to comment on the top of each of these functions that they are only for device emulator and not for AHS local simulator [so that people won't be confused that why they are not used in this repo].

[maolinml]

Actually, don't we also need "validate_pattern_precision"?

[Altanali]

validate_pattern_precision is never used by the Device validators so I chose not to bring it over to the Default Simulator repo.

[Altanali]

Adding the additional comments makes sense for explaining the use of these helpers!