SPE3 - Keywords which flow does not support

[kristfho]

These keywords are not supported by flow.
If not stated otherwise, the keywords are not supported in both of the cases.

-- Summary files --
BOSAT:304
BOSAT:7,7,4
BRS:1
BRS:1,1,1
BRS:1,9,1
BRS:252
BRS:274
BRS:304
BRS:4,4,4
BRS:7,7,4
BRS:73
BRS:81
BRS:9,1,4
BRS:9,9,1
YEARS
---------- Only CASE2 does not support
FOPR
FOPT

-- UNRST-files --
IGRP
SGRP
XGRP
ZGRP
SWEL
XWEL
ZWLS
IWLS
SCON
XCON
DLYTIM
HIDDEN
SOMAX
REGDIMS
FIPFAMNA
REGRPT
---------- Only CASE2 does not support
RS
RV