Merge pull request #2122 from NNPDF/update_pDIS_g1f1_fknames

...a/nnpdf_data/new_commondata/E155_NC_9GEV_EN/metadata.yaml

...a/nnpdf_data/new_commondata/E155_NC_9GEV_EP/metadata.yaml

...npdf_data/new_commondata/JLABE06_NC_3GEV_EN/metadata.yaml

...npdf_data/new_commondata/JLABE99_NC_3GEV_EN/metadata.yaml

...data/new_commondata/JLABEG1B_NC_NOTFIXED_ED/metadata.yaml

...data/new_commondata/JLABEG1B_NC_NOTFIXED_EP/metadata.yaml

..._data/new_commondata/JLABEG1DVCS_NC_3GEV_EP/metadata.yaml

..._data/new_commondata/JLABEG1DVCS_NC_5GEV_ED/metadata.yaml

...npdf_data/new_commondata/SMCSX_NC_17GEV_MUP/metadata.yaml

...npdf_data/new_commondata/SMCSX_NC_24GEV_MUD/metadata.yaml