Cgohlke

- Read 32-bit Indica Labs TIFF as float32.
- Fix UnboundLocalError reading big LSM files without time axis.
- Use os.sched_getaffinity, if available, to get the number of CPUs (231).
- Limit the number of default worker threads to 32.

- Fix empty line when first record is start marker.

- Change image histogram dimension order to TYXCH (breaking).
- Change frame start to start of first line in frame (breaking).
- Improve trimming of incomplete frames (breaking).
- Remove trim_dtime option (breaking).
- Fix selection handling in PtuFile.decode_image.
- Add option to trim T, C, and H axes of image histograms.
- Add option to decode histograms to memory-mapped or user-provided arrays.
- Add ``__getitem__`` interface to image histogram.

- Initial alpha release.


Revisions
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- Update structs to SPCM v.9.66 (breaking).
- Shorten MEASURE_INFO struct to meas_desc_block_length.

- Lazily convert dask array to ndarray when writing.
- Allow to specify buffersize for reading and writing.
- Fix IndexError reading some corrupted files with ZarrTiffStore (227).