noise profile: updated pentax k-30 by wolfang renz.
noise profile: updated olympus e-520 by daniel schury.
noise profile: olympus e-p2 and e-3 by damjan vrencur.
noise profile: updated sony slt-a57 by baptiste pierrat.
openexr: also compile with 2.0
storage/format :  create a new size function

get_params used to return both the size and an allocated structure

the new param allows to get the size separatly
format : type verification and fixups
storage : type verification and fixup