Create a DAT-file based on which block a codepoint is a member of.
Syntax: ./createunicodeblock {<options>} <conf-file>
      
      Example of the conf-file, latin.conf:
blocks_file=/home/alfa/Doc/UCD/Blocks.txt
        dat_file=/home/alfa/u/project/GnatC_te/Tool/latin.dat
        urvMap=LATINBLK
        urvSet=Basic Latin.*
        urvSet=Latin.*
    
"/home/alfa/Doc/UCD/Blocks.txt"
      refers to the directory Unicode Zip file is unzipped in, in our
      case it is in directory /home/alfa/Doc/UCD.
      "/home/alfa/u/project/GnatC_te/Tool/latin.dat"
      is the path where to store the file latin.dat.