add redstone controls

src/main/java/storagecraft/tile/RedstoneMode.java

@@ -0,0 +1,23 @@
+package storagecraft.tile;
+
+public enum RedstoneMode {
+	IGNORE(0),
+	HIGH(1),
+	LOW(2);
+
+	public final int id;
+
+	RedstoneMode(int id) {
+		this.id = id;
+	}
+
+	public static RedstoneMode getById(int id) {
+		for (RedstoneMode control : values()) {
+			if (control.id == id) {
+				return control;
+			}
+		}
+
+		return null;
+	}
+}