Returns the number of parameters on the command line
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 Syntax

        GT_argc() --> nCount

 Arguments:

      None

 Returns:

      nCount  - The number of command line parameters.

 Description:

      Get the number of parameters passed to the Exe
      Reads the C startup variable to find the number of parameters

      Note there is always 1 parameter.  In C argv[0] always equals
      the EXE name in non prehistoric DOSes

 Examples:

      ? "I have been passed " + str(GT_Argc()) + " parameters."

 Source: ARGC.C

 Author:  Andy M Leighton