Refactor buffer retrieval methods in BPM, LBLM, PMT, and Wire classes

[kabanaty]

This pull request refactors several device classes to standardize and modernize the way buffer data is retrieved. The main change is replacing calls to a custom get_data_buffer method with the more general get method, while also allowing additional keyword arguments to be passed through. This improves flexibility and consistency across device classes.

Buffer access refactoring:

• Updated all buffer data retrieval methods in BPM, LBLM, PMT, and Wire device classes to use buffer.get() instead of buffer.get_data_buffer(), and added **kwargs to support additional parameters. This change standardizes buffer access and increases method flexibility.

• Modified the get_buffer_data method in the BPM collection to accept **kwargs and pass them to buffer.get(), allowing for more customizable buffer queries.

These changes make the device classes more consistent and extensible when interacting with timing buffers.

[Copilot]

Pull request overview

This PR refactors timing-buffer retrieval helpers across several device classes (BPM, LBLM, PMT, Wire) to make buffer access more flexible by forwarding additional parameters into buffer.get(...).

Changes:

• Updated per-device *_buffer helper methods to accept **kwargs and forward them to buffer.get(...).
• Updated BPMCollection.get_buffer_data(...) to accept **kwargs and pass them through to buffer.get(...).
• Introduced new “raise on None” behavior in several buffer helpers (BPM/LBLM/PMT), changing their contracts compared to the prior “return raw result” behavior.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 9 comments.

File	Description
slac_devices/wire.py	Updates wire position buffer retrieval to forward **kwargs into buffer.get(...).
slac_devices/pmt.py	Updates PMT QDCRAW buffer retrieval to forward **kwargs (and adds new error-on-None behavior).
slac_devices/lblm.py	Updates LBLM buffer retrieval helpers to forward **kwargs (and adds new error-on-None behavior).
slac_devices/bpm.py	Updates BPM buffer retrieval helpers and collection retrieval to forward **kwargs (and adds new error-on-None behavior + updated exception handling).

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[eloise-nebula]

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