Check if a drive as a remote drive.
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 Syntax

        GT_Remote([<ncDrive>]) --> lIsRemote

 Arguments:

      <ncDrive> is an optional parameter that is the id of the drive
      to be checked. This paramater can be either a character value who's
      first character is taken as the drive letter or a numeric value
      where 0 = Default, 1 = A:, 2 = B:, etc... If no parameter is
      passed the default drive is used.

 Returns:

      A logical value, true (.T.) if the drive is a remote drive, false
      (.F.) if it is local.

 Description:

      GT_Remote() can be used to check if a drive is a remote device.

 Examples:

      // Each of the following check if drive D: is a remote drive.

      ? GT_Remote("D:")
      ? GT_Remote("D")
      ? GT_Remote("Dark Knight")     // First letter is used only.
      ? GT_Remote(4)

      // The next two check the current drive.

      ? GT_Remote(0)
      ? GT_Remote()

 Source: ISREMOTE.C

 Author:  Dave Pearson