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/lfrfid/view/elements/generic_element.cpp

@@ -0,0 +1,15 @@
+#include "generic_element.h"
+
+void GenericElement::lock_model() {
+    furi_assert(view != nullptr);
+    view_get_model(view);
+}
+
+void GenericElement::unlock_model(bool need_redraw) {
+    furi_assert(view != nullptr);
+    view_commit_model(view, need_redraw);
+}
+
+void GenericElement::set_parent_view(View* _view) {
+    view = _view;
+}