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/helpers/key_commands.h

@@ -0,0 +1,39 @@
+#pragma once
+#include <stdint.h>
+
+class RW1990_1 {
+public:
+    constexpr static const uint8_t CMD_WRITE_RECORD_FLAG = 0xD1;
+    constexpr static const uint8_t CMD_READ_RECORD_FLAG = 0xB5;
+    constexpr static const uint8_t CMD_WRITE_ROM = 0xD5;
+};
+
+class RW1990_2 {
+public:
+    constexpr static const uint8_t CMD_WRITE_RECORD_FLAG = 0x1D;
+    constexpr static const uint8_t CMD_READ_RECORD_FLAG = 0x1E;
+    constexpr static const uint8_t CMD_WRITE_ROM = 0xD5;
+};
+
+class TM2004 {
+public:
+    constexpr static const uint8_t CMD_READ_STATUS = 0xAA;
+    constexpr static const uint8_t CMD_READ_MEMORY = 0xF0;
+    constexpr static const uint8_t CMD_WRITE_ROM = 0x3C;
+    constexpr static const uint8_t CMD_FINALIZATION = 0x35;
+
+    constexpr static const uint8_t ANSWER_READ_MEMORY = 0xF5;
+};
+
+class TM01 {
+public:
+    constexpr static const uint8_t CMD_WRITE_RECORD_FLAG = 0xC1;
+    constexpr static const uint8_t CMD_WRITE_ROM = 0xC5;
+    constexpr static const uint8_t CMD_SWITCH_TO_CYFRAL = 0xCA;
+    constexpr static const uint8_t CMD_SWITCH_TO_METAKOM = 0xCB;
+};
+
+class DS1990 {
+public:
+    constexpr static const uint8_t CMD_READ_ROM = 0x33;
+};