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/helpers/decoder_indala.h

@@ -0,0 +1,25 @@
+#pragma once
+#include <stdint.h>
+#include <limits.h>
+#include <atomic>
+#include "protocols/protocol_indala_40134.h"
+
+class DecoderIndala {
+public:
+    bool read(uint8_t* data, uint8_t data_size);
+    void process_front(bool polarity, uint32_t time);
+
+    void process_internal(bool polarity, uint32_t time, uint64_t* data);
+
+    DecoderIndala();
+
+private:
+    void reset_state();
+
+    uint64_t raw_data;
+    uint64_t cursed_raw_data;
+
+    std::atomic<bool> ready;
+    std::atomic<bool> cursed_data_valid;
+    ProtocolIndala40134 indala;
+};