Add nfc rfid detector from merge

Edited to support asset packs

applications/external/nfc_rfid_detector/application.fam

@@ -0,0 +1,13 @@
+App(
+    appid="nfc_rfid_detector",
+    name="NFC/RFID detector",
+    apptype=FlipperAppType.EXTERNAL,
+    targets=["f7"],
+    entry_point="nfc_rfid_detector_app",
+    requires=["gui"],
+    stack_size=4 * 1024,
+    order=50,
+    fap_icon="nfc_rfid_detector_10px.png",
+    fap_category="Tools",
+    fap_icon_assets="images",
+)