Put all classes in one header and rename case to cell

src/CellMap.cpp

@@ -0,0 +1,20 @@
+#include <cstdint>
+#include <gdal/ogr_spatialref.h>
+#include <ogr_spatialref.h>
+#include "contour_creator.hh"
+
+
+CellMap::CellMap(int width, int height, uint8_t* cells, OGRSpatialReference reference_system)
+{
+    this->width = width;
+    this->height = height;
+    this->cells = cells;
+    this->reference_system = reference_system;
+
+}
+int CellMap::get_cell(int x, int y)
+{
+    // all the cells are in an array of ints from left to right, top to bottom
+    int offset = ((this->width * y) + x);
+    return *(this->cells + offset);
+}