[WIP] SDC screen

This hasn't really been tested yet and sometimes looks weird.

Core/Inc/vehicle_state.h

@@ -110,6 +110,9 @@ typedef struct {
   Mission active_mission;
 
   int sdc_closed;
+  int pdu_sdc_active;
+  int imd_ok;
+  int sdcl_state[3];
 
   R2DProgress r2d_progress;
   struct {
@@ -172,6 +175,7 @@ typedef struct {
 
   uint32_t last_jetson_msg;
   uint32_t last_epsc_msg;
+  int as_ok;
   float desired_angle;
   float measured_angle;
   float desired_speed;