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/cli/cli.c

@@ -1,7 +1,7 @@
 #include "cli_i.h"
 #include "cli_commands.h"
 
-#include <furi-hal-version.h>
+#include <furi_hal_version.h>
 #include <loader/loader.h>
 
 Cli* cli_alloc() {

applications/cli/cli_commands.c

@@ -1,10 +1,10 @@
 #include "cli_commands.h"
-#include <furi-hal.h>
-#include <furi-hal-gpio.h>
-#include <furi-hal-info.h>
-#include <task-control-block.h>
+#include <furi_hal.h>
+#include <furi_hal_gpio.h>
+#include <furi_hal_info.h>
+#include <task_control_block.h>
 #include <time.h>
-#include <notification/notification-messages.h>
+#include <notification/notification_messages.h>
 
 // Close to ISO, `date +'%Y-%m-%d %H:%M:%S %u'`
 #define CLI_DATE_FORMAT "%.4d-%.2d-%.2d %.2d:%.2d:%.2d %d"

applications/cli/cli_i.h

@@ -3,7 +3,7 @@
 #include "cli.h"
 
 #include <furi.h>
-#include <furi-hal.h>
+#include <furi_hal.h>
 
 #include <m-dict.h>
 #include <m-bptree.h>