add u8g2 and ui libs (#91)

* add u8g2 and ui libs

* add display driver and usage example

* not init display in test mode

* change todo text

* fix removed code

* Target f2 (#107)

* add ioc for flipperzero f2

* add generated f1 files to f2

* regenerate cubemx

* invert initial state of led

* blink backligh

* shutdown backlight on idle

target_f2/Src/usb_device.c

@@ -0,0 +1,102 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file           : usb_device.c
+  * @version        : v2.0_Cube
+  * @brief          : This file implements the USB Device
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; Copyright (c) 2020 STMicroelectronics.
+  * All rights reserved.</center></h2>
+  *
+  * This software component is licensed by ST under Ultimate Liberty license
+  * SLA0044, the "License"; You may not use this file except in compliance with
+  * the License. You may obtain a copy of the License at:
+  *                             www.st.com/SLA0044
+  *
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+
+/* Includes ------------------------------------------------------------------*/
+
+#include "usb_device.h"
+#include "usbd_core.h"
+#include "usbd_desc.h"
+#include "usbd_cdc.h"
+#include "usbd_cdc_if.h"
+
+/* USER CODE BEGIN Includes */
+
+/* USER CODE END Includes */
+
+/* USER CODE BEGIN PV */
+/* Private variables ---------------------------------------------------------*/
+
+/* USER CODE END PV */
+
+/* USER CODE BEGIN PFP */
+/* Private function prototypes -----------------------------------------------*/
+
+/* USER CODE END PFP */
+
+/* USB Device Core handle declaration. */
+USBD_HandleTypeDef hUsbDeviceFS;
+extern USBD_DescriptorsTypeDef FS_Desc;
+
+/*
+ * -- Insert your variables declaration here --
+ */
+/* USER CODE BEGIN 0 */
+
+/* USER CODE END 0 */
+
+/*
+ * -- Insert your external function declaration here --
+ */
+/* USER CODE BEGIN 1 */
+
+/* USER CODE END 1 */
+
+/**
+  * Init USB device Library, add supported class and start the library
+  * @retval None
+  */
+void MX_USB_DEVICE_Init(void)
+{
+  /* USER CODE BEGIN USB_DEVICE_Init_PreTreatment */
+  
+  /* USER CODE END USB_DEVICE_Init_PreTreatment */
+  
+  /* Init Device Library, add supported class and start the library. */
+  if (USBD_Init(&hUsbDeviceFS, &FS_Desc, DEVICE_FS) != USBD_OK)
+  {
+    Error_Handler();
+  }
+  if (USBD_RegisterClass(&hUsbDeviceFS, &USBD_CDC) != USBD_OK)
+  {
+    Error_Handler();
+  }
+  if (USBD_CDC_RegisterInterface(&hUsbDeviceFS, &USBD_Interface_fops_FS) != USBD_OK)
+  {
+    Error_Handler();
+  }
+  if (USBD_Start(&hUsbDeviceFS) != USBD_OK)
+  {
+    Error_Handler();
+  }
+  /* USER CODE BEGIN USB_DEVICE_Init_PostTreatment */
+  
+  /* USER CODE END USB_DEVICE_Init_PostTreatment */
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/