Add message type ids to PixelBot client code

PixelHub-Client/PixelBot.h

@@ -3,6 +3,32 @@
 #include <ESP8266WiFi.h>
 #include <WiFiUdp.h>
 
+/// Message Types ///
+
+// Hard-resets the PixelBot. Useful if something has gone wrong, or to reset it's internal state.
+const int MESSAGE_RESET = 0;
+// May be sent by either party. Indicates that one or the other doesn't like a message that was sent by the other party.
+const int MESSAGE_ERROR = 1;
+// Sent by a PixelBot upon connection.
+const int MESSAGE_HANDSHAKEREQUEST = 5;
+// Sent by the server in response to a `HandshakeRequest`.
+const int MESSAGE_HANDSHAKERESPONSE = 6;
+// Instructs a PixelBot to perform a movement.
+const int MESSAGE_MOVE = 11;
+// Sent by a pixelbot to indicate that the command sent by the server is ok, and that it will proceed to execute it.
+const int MESSAGE_COMMANDOK = 12;
+// Sent by a pixelbot to indicate that it has completed executing the command sent previously.
+const int MESSAGE_COMMANDCOMPLETE = 13;
+// Sent by a pixelbot to indicate that it has failed to complete the execution of a command it received previously.
+const int MESSAGE_COMMANDFAILED = 14;
+// Sent by the server to request information from a PixelBot. This could be from sensors, configuration, statistics, etc.
+const int MESSAGE_INFOREQUEST = 20;
+// Sent by a PixelBot in response to an `InfoRequest` message.
+const int MESSAGE_INFORESPONSE = 21;
+
+/////////////////////
+
+
 /// <summary>
 /// Connects to a PixelHub server, receives commands, and acts upon them.
 /// </summmary>