Restructure repositories

[hinerm]

Currently, the scifio repository in scifio.git conflates several software projects:

• The SCIFIO core
• Bio-Formats classes
• Forks

A new repository should be created for SCIFIO, Bio-Formats (including OME-XML), and each fork/stub, so that each can be individually versioned.

Each repository should also have its own package space.

[hinerm]

Also, it is confusing right now to have two artifacts called "scifio", since we renamed scifio-devel (so both components/scifio and components/scifio-devel create artifact "scifio" in maven).

So as part of this restructuring, since we'll be creating a Bio-Formats fork, we should just move components/scifio to components/loci-legacy - preserving package structure and such. This was going to be their final destination anyway, so it makes sense to do it now.

[hinerm]

Also, we're still using TestNG right now for the scifio unit tests.. might be nice to convert this..

[hinerm]

Completed restructuring with 0.3.0 release, scifio-jai-imageio-core component, and the bioformats fork.