Converted TIFFFormat

The loci.formats TiffReader and TiffWriter were consolidated to SCIFIO
components in ome.scifio as TIFFFormat. The supporting TiffSaver was
also copied to SCIFIO.

As TIFFFormat extended BaseTiffReader, it was also marked deprecated
(although its logic is restricted to a BaseTIFFParser in the new
TIFFFormat).

The TiffDelegateReader was also marked deprecated although it should
still function as normal.
Converted OME-TIFF format

Translated the loci.formats OMETiffReader and Writer to SCIFIO
components in ome.scifio, consolidated to the OMETIFFFormat.

Added required "getOriginalMetadata" method to OMEXMLService as well.
Removed Bio-Formats from test-suite dependencies

Some Bio-Formats readers were superceding OME-TIFF for testing.
Eventually the test-suite will be completely converted for SCIFIO
classes. For now it is enough to remove Bio-Formats from the classpath,
and the one reference to Bio-Formats readers in the FormatReader test.
Added "exact" flag to TranslatorService

Translators (via the underlying PluginAttributeService) can now be
queried with an "exact" flag. If true, the translator must match both
Metadata classes exactly. If false, "isassignablefrom" is tested.
Updated uses as needed.
Added dummy EPSFormat Translator

Added an empty translator from ome.scifio.Metadata to EPSFormatMetadata.
This is to facilitate the EPS to OMEXML translator (which was looking
for an exact translator for EPSMetadata, which didn't exist).