Raw reads should use `RawDataWidthInBits` on DAQmx versions that support it

[bkeryan]

Problem to Solve

Raw read methods like InStream.read and InStream.read_into do a lot of work to calculate the raw sample size, but this code is incomplete and does not account for these cases:

• DIO and CI channels
• Compressed AI data
• Reading before the task is verified

Proposed Solution

NI-DAQmx 24.5 or 24.8 added support for a new internal attribute, RawDataWidthInBits, which indicates the raw data size in bits. I think the corresponding C API function name is DAQmxGetRawDataWidthInBits. If this function is available, nidaqmx-python should use it instead of calculating based on AI channel attributes.

AB#3240024