Add remaining classes missing from our bij artifact

This used JAD for decompiling the classes and excluded Open_HP_volume
because it was completely unclear what the different field names
should have been.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Get rid of JAD-generated _$<name> fields and methods

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Organize all imports in bij

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Replace the deprecated IJ.write() calls with IJ.log() ones

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>