Get a value from the profile file
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 Syntax

        H_GetProfStr( cFile , cHeader , cKey , cDefault )

 Arguments:

      cFile    - Profile file
      cHeader  - Section header
      cKey     - Key within section
      cDefault - Default value (optional)

 Returns:

      The value of the key in the section given, or the default value

 Description:

      cFile is an INI file in the following format :
      [Header]
      key=value

 Examples:



 Header File: H_LIB52.CH

 Source: PROFILE.PRG

 Author:  Craig Howarth