KRNUM Cases Update

[OPMUSER]

Changes for the existing cases:

• Renaming of include files for clarification and for including additional files.
• Renamed SOLVENT_KRNUMXY.DATA to KRNUMXY_SOLVENT.DATA
• The KRNUM cases use the KRNUM-MODEL-SUMMARY.inc file, but there is a typo with one of the wells, B-1, which should be B-1H, I have kept this as is for the time being.

Changes for the new cases ( to be added later):

• The new KRNUM*- cases ( not currently supported) and the KRNUM-*+IMBNUM cases use the corrected version of the SUMMARY file, KRNUM-MODEL-SUMMARY.inc, which also includes the well totals.