Added function prototype for plGetName, moved some others from plstream.h into here.
Added function prototype for plGetName, moved some others from plstream.h
into here.

svn path=/trunk/; revision=458

FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot