NFC user dict list, delete, and de-duplication. (#1533)

* Add MFC user keys list
* Leakey submenu fix
* Set next target for Save/Delete success scenes
* Delete individual user keys
* Update count of total keys
* Fix memory leak
* Check for duplicate keys
* Remove a submodule that I never added?
* Swap and position icons
* Revamp according to design doc
* Rename icons to include size and replace keychain icon with smaller variant
* Fix typos
* Final fixes
* Fufill requested changes
* Cleanup comments
* Merge dev after SD app loading
* Fixing icon names
* Revert merge mistakes and API version
* Scene switching adjustments
* F7: add/change/remove some nfc icons in api_symbols.csv

Co-authored-by: あく <alleteam@gmail.com>

applications/main/nfc/nfc_i.h

@@ -37,6 +37,10 @@
 
 #include "rpc/rpc_app.h"
 
+#include <m-array.h>
+
+ARRAY_DEF(MfClassicUserKeys, char*, M_PTR_OPLIST);
+
 #define NFC_TEXT_STORE_SIZE 128
 
 typedef enum {
@@ -60,6 +64,7 @@ struct Nfc {
     char text_store[NFC_TEXT_STORE_SIZE + 1];
     string_t text_box_store;
     uint8_t byte_input_store[6];
+    MfClassicUserKeys_t mfc_key_strs; // Used in MFC key listing
 
     void* rpc_ctx;
     NfcRpcState rpc_state;