msg_old: add EventV0.msg

Signed-off-by: Silvan <[email protected]>

Author: sfuhrer

msg/px4_msgs_old/msg/EventV0.msg

@@ -0,0 +1,11 @@
+# this message is required here in the msg_old folder because other msg are depending on it
+# Events interface
+uint64 timestamp			# time since system start (microseconds)
+
+uint32 id                   # Event ID
+uint16 event_sequence       # Event sequence number
+uint8[25] arguments         # (optional) arguments, depend on event id
+
+uint8 log_levels            # Log levels: 4 bits MSB: internal, 4 bits LSB: external
+
+uint8 ORB_QUEUE_LENGTH = 16