Segmentation Fault Fix/FreqRefUserInfo temperature fix

[dboulware]

This fixes the consistent and mysterious segmentation faults that have been occurring. The primary fix appears to have been correcting the _DEVINFO_MAX_STRLEN to match the header file which causes the temperature to correctly populate in the FreqRefUserInfo struct. In addition to this, this also changes filenames to a pointer POINTER in the IQStreamFileInfo Struct and adds some debug logging. Finally, it increments the version to 1.3.3. Thanks to @jhazentia for the assistance.

[jhazentia]

You may want to consider posting the filenames pointer issue on the Tektronix RSA_API repo. For the filenames pointer issue, the Cython version looks correct with double pointer but ctypes version looks wrong. For the FreqRefUserInfo fix, I don't see it in ctypes version and commented out in cython version.

[aromanielloNTIA]

Looks good! Tested with RSA300 on Linux. I made a few changes:

• Removed most of IQSTREAM_Tempfile() and replaced with with simple calls to configure the device, then call IQSTREAM_Tempfile_NoConfig() directly. This removes some duplicate code and makes sure same wait-for-data behavior occurs in both functions.
• I went to the source RSA_API.h header file to check out all the ReturnStatus values, and filled in the missing ones in the Python wrapper. This change also included fixing a few typos where Enum values were set to integers.

I'm still testing on my end with RSA 500- seeing segfaults again when running unittest with RSA500

[aromanielloNTIA]

Made a few more edits to align this wrapper with the struct definitions and char array allocations from RSA_API.h. Seems to have fixed some segfault behavior that would occur at the end of running unit tests. I also replaced DEVICE_GetInfo with a more direct function call, which works now, since the string lengths are handled correctly.

I think this is ready to merge! Going to hold off for a bit on creating a release, to update pre-commit stuff and test maximum supported Python version.