Add send scs

Src/mmr_can_send_scs.c

@@ -0,0 +1,21 @@
+#include "mmr_can.h"
+
+
+HalStatus MMR_CAN_SendSCS(
+  CanHandle *hcan,
+  MmrCanMessageId scsId,
+  CanMailbox *mailbox,
+  CanId senderId
+) {
+  MmrCanPacket packet = {
+    .header = {
+      .senderId = senderId,
+      .messageId = scsId,
+      .priority = MMR_CAN_MESSAGE_PRIORITY_HIGH,
+    },
+    .mailbox = mailbox,
+    .length = 0,
+  };
+  
+  return MMR_CAN_Send(hcan, packet);
+}