node: handle statuses, added base ui

src/node/mod.rs

@@ -12,6 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-pub mod node;
+mod node;
 
-pub use self::node::start;
+pub use self::node::Node;
+pub use self::node::NodeState;