Unify NumBox and UnitBox (NumBox is no longer needed)
Signed-off-by: chipmuenk <mail@chipmuenk.de>
Unify NumBox and UnitBox (NumBox is no longer needed); rename all filter specs
Signed-off-by: chipmuenk <mail@chipmuenk.de>
rename all filter specs; prepare for building spec tree from filter files
Signed-off-by: chipmuenk <mail@chipmuenk.de>