Fur Fighters Dreamcast unknown level data

<level_file_name>_unknown.dat: two separate data. First part is first part of second/third level format. Second is last part from second/third level format. Variable size for each level file.

Sometimes both at end like level format 2a and 3.

dam_1l.ldc version 1 only has second unknown data. Same as level format 2.

(texture mapping data? probably not though after looking at dam_l1 one too small) lighting data??

Internal model animation keyframes???

Camera data?