[FL-1934] Core: wipe memory after free. SubGhz: key encryption tool. (#797)

* Core: wipe memory after free. RFID,iButton: fix iterator use after invalidation.

* Debug: support unix wildcards for register matching in svd, update MCU description file and minify it.

* Toolbox: getter for File in FlipperFile.

* Makefile: conditional flashing

* SubGhz: keeloq_mfcodes encryption tool.

* FuriHal: proper IV handling on CBC in crypto. SubGhz: add support for encrypted keeloq keys. Makefile: move formatting to top Makefile.

* SubGhz: rename some function names to match naming scheme.

* SubGhz: encryption tool, fix windows line endings

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

lib/subghz/subghz_keystore.h

@@ -33,7 +33,14 @@ void subghz_keystore_free(SubGhzKeystore* instance);
  * @param instance - SubGhzKeystore instance
  * @param filename - const char* full path to the file
  */
-void subghz_keystore_load(SubGhzKeystore* instance, const char* filename);
+bool subghz_keystore_load(SubGhzKeystore* instance, const char* filename);
+
+/** Save manufacture key to file
+ * 
+ * @param instance - SubGhzKeystore instance
+ * @param filename - const char* full path to the file
+ */
+bool subghz_keystore_save(SubGhzKeystore* instance, const char* filename, uint8_t* iv);
 
 /** Get array of keys and names manufacture
  *