Add units on message comments

msg/onboard_computer_status.msg

@@ -1,6 +1,6 @@
 # ONBOARD_COMPUTER_STATUS message data
-uint64 timestamp # time since system start (microseconds)
-uint32 uptime	 # time since system boot of the companion (milliseconds)
+uint64 timestamp # [us] time since system start (microseconds)
+uint32 uptime	 # [ms] time since system boot of the companion (milliseconds)
 
 uint8 type	 # type of onboard computer 0: Mission computer primary, 1: Mission computer backup 1, 2: Mission computer backup 2, 3: Compute node, 4-5: Compute spares, 6-9: Payload computers.
 
@@ -8,16 +8,16 @@ uint8[8] cpu_cores # CPU usage on the component in percent
 uint8[10] cpu_combined # Combined CPU usage as the last 10 slices of 100 MS
 uint8[4] gpu_cores # GPU usage on the component in percent
 uint8[10] gpu_combined # Combined GPU usage as the last 10 slices of 100 MS
-int8 temperature_board # Temperature of the board
-int8[8] temperature_core # Temperature of the CPU core
-int16[4] fan_speed # Fan speeds
-uint32 ram_usage # Amount of used RAM on the component system
-uint32 ram_total # Total amount of RAM on the component system
+int8 temperature_board # [degC] Temperature of the board
+int8[8] temperature_core # [degC] Temperature of the CPU core
+int16[4] fan_speed # [rpm] Fan speeds
+uint32 ram_usage # [MB] Amount of used RAM on the component system
+uint32 ram_total # [MB] Total amount of RAM on the component system
 uint32[4] storage_type # Storage type: 0: HDD, 1: SSD, 2: EMMC, 3: SD card (non-removable), 4: SD card (removable)
-uint32[4] storage_usage # Amount of used storage space on the component system
-uint32[4] storage_total # Total amount of storage space on the component system
-uint32[6] link_type # Link type: 0-9: UART, 10-19: Wired network, 20-29: Wifi, 30-39: Point-to-point proprietary, 40-49: Mesh proprietary
-uint32[6] link_tx_rate # Network traffic from the component system
-uint32[6] link_rx_rate # Network traffic to the component system
-uint32[6] link_tx_max # Network capacity from the component system
-uint32[6] link_rx_max # Network capacity to the component system
+uint32[4] storage_usage # [MB] Amount of used storage space on the component system
+uint32[4] storage_total # [MB] Total amount of storage space on the component system
+uint32[6] link_type # [Kb/s] Link type: 0-9: UART, 10-19: Wired network, 20-29: Wifi, 30-39: Point-to-point proprietary, 40-49: Mesh proprietary
+uint32[6] link_tx_rate # [Kb/s] Network traffic from the component system
+uint32[6] link_rx_rate # [Kb/s] Network traffic to the component system
+uint32[6] link_tx_max # [Kb/s] Network capacity from the component system
+uint32[6] link_rx_max # [Kb/s] Network capacity to the component system