Minor additions to host

host/host_central_mast/include/MessageType.h

+//
+// Created by zoe on 1/24/23.
+//
+
+#ifndef HOST_CENTRAL_MAST_MESSAGETYPE_H
+#define HOST_CENTRAL_MAST_MESSAGETYPE_H
+
+enum MessageType { dataAck, hostChange };
+
+typedef struct response {
+    MessageType type;
+    uint8_t mac[6];
+    long time; // Clang-Tidy: Narrowing conversion from 'unsigned long' to signed type 'long' is implementation-defined
+               // (see rtc in main.cpp)
+} response;
+#endif // HOST_CENTRAL_MAST_MESSAGETYPE_H