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/ibutton/ibutton_key.h

@@ -0,0 +1,31 @@
+#pragma once
+#include <stdint.h>
+#include "helpers/key_info.h"
+
+class iButtonKey {
+public:
+    uint8_t get_size();
+
+    void set_data(uint8_t* data, uint8_t data_count);
+    void clear_data();
+    uint8_t* get_data();
+    uint8_t get_type_data_size();
+
+    void set_name(const char* name);
+    char* get_name();
+
+    void set_type(iButtonKeyType key_type);
+    iButtonKeyType get_key_type();
+
+    const char* get_key_type_string_by_type(iButtonKeyType key_type);
+    bool get_key_type_by_type_string(const char* type_string, iButtonKeyType* key_type);
+    uint8_t get_type_data_size_by_type(iButtonKeyType key_type);
+
+    iButtonKey();
+
+private:
+    uint8_t data[IBUTTON_KEY_DATA_SIZE] = {0, 0, 0, 0, 0, 0, 0, 0};
+    char name[IBUTTON_KEY_NAME_SIZE] = {0};
+
+    iButtonKeyType type = iButtonKeyType::KeyDallas;
+};