Added a maze solver object to handle the search algorithms that will be used to solve the maze. Updated the sketch code to use said object.

index.html

@@ -22,6 +22,7 @@
 	  clear: both;
 	}
   </style>
+  <script src="maze-solver.js"></script>
   <script src="cell.js"></script>
   <script src="gen-maze.js"></script>
   <script src="../p5.js"></script>
@@ -40,6 +41,7 @@
 			<select id="searchAlgo">
 				<option value="depthFirst">Depth First</option>
 				<option value="breadthFirst">Breadth First</option>
+				<option value="a">a*</option>
 			</select><br />
 			<label for="solvingFrameRate">Framerate During Maze Solving: </label><input type="number" id="solvingFrameRate" min="1" max="144" step="1" value="30"/><br />
 			<input id="reuseMaze" type="checkbox" checked="true"/><label for="reuseMaze">Reuse current maze on next run</label>