GET strcuture

Build out infrastructure for get requests (along with the first couple).

This includes changing the request engine from Volley to OKHTTP due to issues get Volley's callbacks to call back.

Lambdas/Lists/List/src/List.java

@@ -0,0 +1,18 @@
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.time.LocalDateTime;
+
+public class List {
+    Integer itemID;
+    String name;
+    String owner;
+    LocalDateTime lastUpdated;
+
+    public List(ResultSet listRow) throws SQLException {
+        itemID = listRow.getInt(1);
+        name = listRow.getString(2);
+        owner = listRow.getString(3);
+        lastUpdated = listRow.getObject(8, LocalDateTime.class);
+    }
+
+}