Added body cell functionality

src/Organism/Cell/BodyCells/MoverCell.js

@@ -0,0 +1,11 @@
+const CellStates = require("../CellStates");
+const BodyCell = require("./BodyCell");
+
+class MoverCell extends BodyCell{
+    constructor(org, loc_col, loc_row){
+        super(CellStates.mover, org, loc_col, loc_row);
+        this.org.is_mover = true;
+    }
+}
+
+module.exports = MoverCell;