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

applications/irda/view/irda_app_brut_view.c

@@ -1,11 +1,11 @@
-#include "furi-hal-resources.h"
+#include "furi_hal_resources.h"
 #include "assets_icons.h"
 #include "gui/canvas.h"
 #include "gui/view.h"
 #include "input/input.h"
 #include <gui/elements.h>
 #include <furi.h>
-#include "irda-app-brut-view.h"
+#include "irda_app_brut_view.h"
 #include "gui/modules/button_panel.h"
 #include <stdint.h>