New LF-RFID app (#534)

* Hal lfrfid: add read timer pulse and period config fns
* New debug application for lfrfid subsystem
* New lfrfid: app, fix naming
* App lfrfid: assets
* Container view module
* App ibutton: remove unused header
* App lfrfid scenes
* App notification, add yield to blocking operations, add speaker volume control
* App lfrfid: reading key scene
* Assets: placeholder icon
* App lfrfid: reworked container view module
* App lfrfid: new scenes
* App lfrfid: write scene
* App lfrfid: write hid
* App lfrfid: emulate scene
* App lfrfid: save name scene
* App lfrfid: add missing file

applications/lfrfid/helpers/protocols/protocol-generic.h

@@ -0,0 +1,60 @@
+#pragma once
+#include "stdint.h"
+#include "stdbool.h"
+
+class ProtocolGeneric {
+public:
+    /**
+     * @brief Get the encoded data size
+     * 
+     * @return uint8_t size of encoded data in bytes
+     */
+    virtual uint8_t get_encoded_data_size() = 0;
+
+    /**
+     * @brief Get the decoded data size
+     * 
+     * @return uint8_t size of decoded data in bytes
+     */
+    virtual uint8_t get_decoded_data_size() = 0;
+
+    /**
+     * @brief encode decoded data
+     * 
+     * @param decoded_data 
+     * @param decoded_data_size 
+     * @param encoded_data 
+     * @param encoded_data_size 
+     */
+    virtual void encode(
+        const uint8_t* decoded_data,
+        const uint8_t decoded_data_size,
+        uint8_t* encoded_data,
+        const uint8_t encoded_data_size) = 0;
+
+    /**
+     * @brief decode encoded data
+     * 
+     * @param encoded_data 
+     * @param encoded_data_size 
+     * @param decoded_data 
+     * @param decoded_data_size 
+     */
+    virtual void decode(
+        const uint8_t* encoded_data,
+        const uint8_t encoded_data_size,
+        uint8_t* decoded_data,
+        const uint8_t decoded_data_size) = 0;
+
+    /**
+     * @brief fast check that data can be correctly decoded
+     * 
+     * @param encoded_data 
+     * @param encoded_data_size 
+     * @return true - can be correctly decoded
+     * @return false - cannot be correctly decoded
+     */
+    virtual bool can_be_decoded(const uint8_t* encoded_data, const uint8_t encoded_data_size) = 0;
+
+    virtual ~ProtocolGeneric(){};
+};