add NIKON D7000 mode 14bit.
add NIKON D7000 mode 14bit.

Was caught thanks to last few commits...

darktable-org/rawspeed,LebedevRI/rawspeed,LebedevRI/rawspeed,anarsoul/rawspeed,LebedevRI/rawspeed,klauspost/rawspeed,darktable-org/rawspeed,darktable-org/rawspeed,darktable-org/rawspeed,anarsoul/rawspeed,darktable-org/rawspeed,LebedevRI/rawspeed,LebedevRI/rawspeed,anarsoul/rawspeed,klauspost/rawspeed