Updated SCIFIOMetadataTools

Removed varags params, added better javadoc, and reduced code repetition
by delegating to a pre-existing FormatTools method.
Removed unnecessary method from FormatTools

Removed a setDimensionOrder method from FormatTools. It is not necessary
now that ImageMetadata decoupled its axis type and length arrays.
wip: Dicom

moved missing JAIIIO tests to scifio-devel