Multiple frames (#8)

* Add fields to mmr header

* Reorder priority constants

* Add message priority

* Add header to message

* Fix compile error

* Set correct bits in header

* Refactor

* Create queue

Src/mmr_can_header.c

@@ -1,6 +1,15 @@
 #include "mmr_can_header.h"
+#include "mmr_can_util.h"
 #include "mmr_can_optimize.h"
 
+uint32_t *MMR_CAN_HeaderToBits(MmrCanHeader *header) {
+  return (uint32_t*)header;
+}
+
+MmrCanHeader *MMR_CAN_HeaderFromBits(uint32_t *bits) {
+  return (MmrCanHeader*)bits;
+}
+
 
 bool MMR_CAN_IsMultiFrame(MmrCanHeader *header) {
   return header->messageType == MMR_CAN_MESSAGE_TYPE_MULTI_FRAME;