Implement two missing functions (surfaced when extending example 33): plscmap1_range and plgcmap1_range
Implement two missing functions (surfaced when extending example 33): plscmap1_range and plgcmap1_range

svn path=/trunk/; revision=12429

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