Asserts the validity for specified Illumina basecalling data. This tool will check that the basecall directory and the internal files are available, exist, and are reasonably sized for every tile and cycle. Reasonably sized means non-zero sized for files that exist per tile and equal size for binary files that exist per cycle or per tile. If DATA_TYPES {Position, BaseCalls, QualityScores, PF, or Barcodes} are not specified, then the default data types used by IlluminaBasecallsToSam are used. CheckIlluminaDirectory DOES NOT check that the individual records in a file are well-formed.