Added Canon EOS 7D, sRAW support.
Added Canon EOS 7D, sRAW support.

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