MCP2515 testing Mongoose OS app

Mongoose os app to test mcp2515 CAN library ported from Arduino.

• Create MCP object

  struct MCP_CAN *mc;

• Send message to CAN controller

  void can_send(void *arg)

• Recieve messages from other CAN controller

  void can_recieve(void *arg)

• Mongoose OS app intialization function

  enum mgos_app_init_result mgos_app_init(void)
  {
    LOG(LL_INFO, ("TCU: Adding CAN interface."));
    mc = mgos_mcp2515_create(10); // cs pin as input
    while (CAN_OK != mgos_mcp2515_begin(mc, CAN_500KBPS))
    {
      LOG(LL_INFO, ("TCU: CAN init failed"));
    }
    LOG(LL_INFO, ("TCU: CAN init ok!"));
    return MGOS_APP_INIT_SUCCESS;
  }
  }