Naming and coding style convention, new linter tool. (#945)

* Makefile, Scripts: new linter
* About: remove ID from IC
* Firmware: remove double define for DIVC/DIVR
* Scripts: check folder names too. Docker: replace syntax check with make lint.
* Reformat Sources and Migrate to new file naming convention
* Docker: symlink clang-format-12 to clang-format
* Add coding style guide

firmware/targets/f6/cube/Inc/usbd_desc.h

@@ -24,7 +24,7 @@
 #define __USBD_DESC__C__
 
 #ifdef __cplusplus
- extern "C" {
+extern "C" {
 #endif
 
 /* Includes ------------------------------------------------------------------*/
@@ -47,11 +47,11 @@
   * @brief Constants.
   * @{
   */
-#define         DEVICE_ID1          (UID_BASE)
-#define         DEVICE_ID2          (UID_BASE + 0x4)
-#define         DEVICE_ID3          (UID_BASE + 0x8)
+#define DEVICE_ID1 (UID_BASE)
+#define DEVICE_ID2 (UID_BASE + 0x4)
+#define DEVICE_ID3 (UID_BASE + 0x8)
 
-#define         USB_SIZ_STRING_SERIAL       0x1A
+#define USB_SIZ_STRING_SERIAL 0x1A
 
 /* USER CODE BEGIN EXPORTED_CONSTANTS */
 
@@ -105,7 +105,7 @@
   * @{
   */
 
-extern USBD_DescriptorsTypeDef     CDC_Desc;
+extern USBD_DescriptorsTypeDef CDC_Desc;
 
 /* USER CODE BEGIN EXPORTED_VARIABLES */