Fix two bugs concerning added KXYCOL's:
  1 - Not set during reading
  2 - Val_K not set in FastFind
modified:
  storage/connect/connect.cc
  storage/connect/filamtxt.h
  storage/connect/tabdos.cpp
  storage/connect/tabfix.cpp
  storage/connect/table.cpp
  storage/connect/valblk.h
  storage/connect/xindex.cpp
  storage/connect/xindex.h
  storage/connect/xtable.h