SSDM-13623: Fixing property assignment flow to newly created sample type; Updating docs. PyBIS-1.35.6rc2

SSDM-13637: Updated definitions to include metaData information for sample, sampleType, experiment, experimentType, dataset, datasetType

SSDM-12812: Added PropertyReformatter to reformat properties of type TIMESTAMP before upload to OpenBis. Added reformatter flow to sample, material, dataset and experiment objects

SSDM-13462: Updated dataset download scheme to use fastdownload when api version is greater than 3.5

SSDM-13462: Implemented fast download scheme for dataset download. The implementation is hidden under the flag and by default it is disabled

SSDM-13443: Added functionality to use PersonalAccessToken object in set_token method. Reformatted code