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/encoder_generic.h

@@ -0,0 +1,27 @@
+#pragma once
+#include <stdbool.h>
+#include <stdint.h>
+
+class EncoderGeneric {
+public:
+    /**
+     * @brief init encoder
+     * 
+     * @param data data array
+     * @param data_size data array size
+     */
+    virtual void init(const uint8_t* data, const uint8_t data_size) = 0;
+
+    /**
+     * @brief Get the next timer pulse
+     * 
+     * @param polarity pulse polarity true = high2low, false = low2high
+     * @param period overall period time in timer clicks
+     * @param pulse pulse time in timer clicks
+     */
+    virtual void get_next(bool* polarity, uint16_t* period, uint16_t* pulse) = 0;
+
+    virtual ~EncoderGeneric(){};
+
+private:
+};