Initial ome-jpegxr project structure.
Align names, disable tests for now.
Rename component to ome-jxr, add tests.
Slight refactoring of tests and reader.
Remove "x" attribute from test file.
Add encoder version check and tests.
Fix Maven build.
Simplify endianness detection logic.
Add IFD getter and refactor tests.
Set the stream byte-order in ctor.
Further refactoring and test additions.
Another round of major refactoring.
Initial impl of metadata extraction.
Make metadata extraction almost work.
Clean up tests, comments; add close() method.
Add ColorFormat enum; further work on metadata.
Almost full implementation of metadata reading.

The PixelFormat class has still an ugly byte array as the common
part. This might need a bit of work. Also unit tests are missing.
Add elements to JXRMetadata class.
Format code.
Update root build system files for ome-jxr