Fix one more time the how water is lit.

Added ancildata and pseudo_ancildata to the renderstate.
Added special case for water in rendermode_ligting_draw().

overviewer_core/src/overviewer.h

@@ -70,6 +70,8 @@ typedef struct {
     /* the block position and type, and the block array */
     int x, y, z;
     unsigned char block;
+    unsigned char block_data;
+    unsigned char block_pdata;
     PyObject *blockdata_expanded;
     PyObject *blocks;
     PyObject *up_left_blocks;