Add initial support for reading BinaryOnly OME-TIFF datasets

This adjusts the type detection slightly so that .companion.ome files
are detected as OME-TIFF, not OME-XML (as this makes finding and reading
the corresponding OME-TIFF files much easier).  Selecting either a
BinaryOnly OME-TIFF file or the corresponding companion OME-XML file
should result in the entire dataset being read.

Fixes #11951.
Catch NPEs when calling getBinaryOnlyMetadataFile
MRC: fix handling of mode 16 data

Mode 16 denotes 8-bit RGB data, not 16-bit data.  See
https://trello.com/c/guQdSW8V/235-follow-ups-with-joaquin
merge dev_5_0 -D org: PR 1078 (Lots of Zeiss CZI fixes)
merge dev_5_0 -D org: PR 1080 (Exclude log4j and packages from target-test-runner)
merge dev_5_0 -D org: PR 1090 (Add initial support for reading BinaryOnly OME-TIFF datasets)
merge dev_5_0 -D org: PR 1091 (MRC: fix handling of mode 16 data)
merge dev_5_0 -D org

Repository: openmicroscopy/bioformats
Updating c799e87..4876596
Merged PRs (fast-forward):
  # PR 1018 melissalinkert 'Flex: fix support for new file naming scheme'
  # PR 1087 melissalinkert 'Metamorph .nd performance improvements'
  # PR 1081 melissalinkert 'Disable file grouping in ImageJ remote import plugin'
  # PR 1085 melissalinkert 'Fix single plane ND2 line scan'
  # PR 1086 melissalinkert 'QuickTime: fix header/footer parsing bug'
  # PR 1084 rleigh-dundee 'make: Convert variables to ant properties'
  # PR 1077 melissalinkert 'CellSens: fix off-by-ones in subresolution tile calculations'
  # PR 1079 melissalinkert 'Gatan metadata fixes'
  # PR 1061 melissalinkert 'Fix 5D Imspector support'
  # PR 1067 imunro 'Allow for a >1 count increment in B&H .sdt Files.'
  # PR 1072 hflynn 'Adding CONTRIBUTING file to BF repo'
  # PR 1074 rleigh-dundee 'docs: Delegate all sphinx Makefile targets to ant'
  # PR 1071 hflynn 'Remove dead bitmap link'

Merged PRs:
  # PR 1078 melissalinkert 'Lots of Zeiss CZI fixes'
  # PR 1080 melissalinkert 'Exclude log4j and packages from target-test-runner'
  # PR 1090 melissalinkert 'Add initial support for reading BinaryOnly OME-TIFF datasets'
  # PR 1091 melissalinkert 'MRC: fix handling of mode 16 data'

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