NAME
       GetObjectName -- get the name for a library's associated object

   SYNOPSIS
       name = GetObjectName(xtraFile, libNum);
       D0                   A0        D0:16

       char * name = GetObjectName(struct BlitzXtra * xtraFile, UWORD libNum);

   FUNCTION
       Each blitz library can have an associated 'object'. Each object has a unique
       name, which is used when a programmer wishes to access a particular instance
       of the object, or adjust the maximum instances of the object. This function
       returns the name of the object associated with the given library.

   INPUTS
       xtraFile - a pointer to a valid BlitzXtra structure, as returned by a call
                  to either  AllocXtra() or  LoadXtra()

       libNum   - the library's identification number

   RESULT
       name - a pointer to the object's name (or NULL if the library does not
              have an associated object)

   BUGS
       The memory used to return the string is shared. This means that
       should two applications call this function together, the result is
       unpredictable

   SEE ALSO
        GetObjectMaximum(),  AllocXtra(),  LoadXtra(), <libraries/blitz.h>,
       <libraries/blitz.i>