Flag table entries based on membership within floating point XMIN,XMAX limits.

% table_fprange_mask --help    

Usage: table_fprange_mask A1 PHIMOON -1.0 180.0 mask1 N  
arg1 - basename of table file (A for A.table)   
arg2 - parameter name to use for testing 
arg3 - low value of selection interval   
arg4 - high value of selection interval   
arg5 - name of output mask file 
arg6 - run in verbose/debug mode (Y/N)