Added basic .gitignore
Added license files

The bioformats component is GPL 2.0, while ome uses a modified BSD
license.
Added base POM structure
Create OMEXML Formats

Created SCIFIO implementations for OMEMetadata (which wraps a metadata
root), the OMETIFFFormat, OMEXMLFormat, untility services, Translators
as needed for every core SCIFIO format, and tests classes.