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

lib/onewire/blanks_writer.cpp

@@ -40,7 +40,7 @@ public:
 #include <stdio.h>
 #include <stdarg.h>
 #include <string.h>
-#include <furi-hal.h>
+#include <furi_hal.h>
 
 void BlanksWriter::onewire_release(void) {
     hal_gpio_write(gpio, true);