Develop bugs

Hi,

   I have just corrected two small bugs in nccf_atm_monthly. There was a $ missing in front of a MONF. And there was a renaming of the leadtime dimension to time whether it had already been done on my file so I added a check to skip this step is the renaming is already done.

Best regards
Virginie

Commented a concatenation of the old file with the new file while they had the same name; only if they span different forecast times the files should be concatenated

Bug-fix: the variable leadtime is already in the file, the dimension leadtime is not hence -v should be -d

Bug mix members

Merge branch 'bug-mix-members' of https://gitlab.cfu.local/cfu/atmosphere_diagnostics into bug-mix-members

Add automatic selection of members if list is left empty + check if prescribed members are not present (+ fixes with trap function)