[FL-1643] NFC emv assets (#661)

* assets: add EMV AID table for NFC app
* file-worker: add searching for value by the key
* nfc: add emv parser helpers
* assets: add country and currency codes
* nfc: add country and currency code parsing
* emv_decoder: add country and currency code support
* nfc: add AID. currency and country display
* nfc: rework bank_card view
* nfc: add currency and country save
* assets: change emv chip asset
* nfc: change asset in bank card
* gui: add frame element to widget
* nfc: add bank card frame, add documentation
* rfal: fix long APDU command emulation
* nfc: fix typos
* Scripts ReadMe: assets delivery command

Co-authored-by: あく <alleteam@gmail.com>
Co-authored-by: DrZlo13 <who.just.the.doctor@gmail.com>

lib/app-scened-template/file-worker-cpp.h

@@ -143,6 +143,17 @@ public:
      */
     bool read_until_buffered(string_t str_result, char* file_buf, size_t* file_buf_cnt, size_t max_length, char separator = '\n');
 
+    /**
+     * @brief Gets value from key
+     *
+     * @param file_worker FileWorker instance
+     * @param key key
+     * @param delimeter key-value delimeter
+     * @param value value for given key
+     * @return true on success
+     */
+    bool get_value_from_key(string_t key, char delimiter, string_t value);
+
     /**
      * @brief Check whether file exist or not
      *