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/notification/notification_app.c

@@ -1,9 +1,9 @@
 #include <furi.h>
-#include <furi-hal.h>
+#include <furi_hal.h>
 #include <storage/storage.h>
 #include "notification.h"
-#include "notification-messages.h"
-#include "notification-app.h"
+#include "notification_messages.h"
+#include "notification_app.h"
 
 #define TAG "NotificationSrv"
 

applications/notification/notification_app.h

@@ -1,7 +1,7 @@
 #include <furi.h>
-#include <furi-hal.h>
+#include <furi_hal.h>
 #include "notification.h"
-#include "notification-messages.h"
+#include "notification_messages.h"
 
 #define NOTIFICATION_LED_COUNT 3
 #define NOTIFICATION_EVENT_COMPLETE 0x00000001U

applications/notification/notification_app_api.c

@@ -1,8 +1,8 @@
 #include <furi.h>
-#include <furi-hal.h>
+#include <furi_hal.h>
 #include "notification.h"
-#include "notification-messages.h"
-#include "notification-app.h"
+#include "notification_messages.h"
+#include "notification_app.h"
 
 void notification_message(NotificationApp* app, const NotificationSequence* sequence) {
     NotificationAppMessage m = {

applications/notification/notification_messages.c

@@ -1,5 +1,5 @@
 #include "notification.h"
-#include "notification-messages-notes.h"
+#include "notification_messages_notes.h"
 #include <stddef.h>
 
 /*********************************** Messages **********************************/

applications/notification/notification_messages.h

@@ -1,6 +1,6 @@
 #pragma once
 #include "notification.h"
-#include "notification-messages-notes.h"
+#include "notification_messages_notes.h"
 
 #ifdef __cplusplus
 extern "C" {

applications/notification/notification_settings_app.c

@@ -1,6 +1,6 @@
 #include <furi.h>
-#include "notification-app.h"
-#include <gui/modules/variable-item-list.h>
+#include "notification_app.h"
+#include <gui/modules/variable_item_list.h>
 #include <gui/view_dispatcher.h>
 
 #define MAX_NOTIFICATION_SETTINGS 4