File naming and directories

So we can easily find files and know instantly what they are, when they were taken, what temperature, which darks and flats to use for calibration etc. we are going to use the following file naming conventions. This fits easily into MaximDL's auto sequence system. The names also allow easy sorting of images when put into a common processing directory. Also the calibration masters needed for each dataset will be placed in the dir with the raw images.