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/app-scened-template/view_modules/text_input_vm.h

@@ -0,0 +1,37 @@
+#pragma once
+#include "generic_view_module.h"
+#include <gui/modules/text_input.h>
+
+class TextInputVM : public GenericViewModule {
+public:
+    TextInputVM();
+    ~TextInputVM() final;
+    View* get_view() final;
+    void clean() final;
+
+    /**
+     * @brief Set text input result callback
+     * 
+     * @param callback - callback fn
+     * @param callback_context - callback context
+     * @param text - text buffer to use
+     * @param max_text_length - text buffer length
+     * @param clear_default_text - clears given buffer on OK event
+     */
+    void set_result_callback(
+        TextInputCallback callback,
+        void* callback_context,
+        char* text,
+        uint8_t max_text_length,
+        bool clear_default_text);
+
+    /** 
+     * @brief Set text input header text
+     * 
+     * @param text - text to be shown
+     */
+    void set_header_text(const char* text);
+
+private:
+    TextInput* text_input;
+};