Improve NFC tag detection and add protocol fields

- Fix MIFARE Ultralight being misidentified as NTAG213
  (require GET_VERSION success for NTAG detection via CC)
- Fix MIFARE Classic detection on ACR1252U via authentication probe
- Add ICode SLIX detection from UID manufacturer byte (0xE0 = NXP)
- Add protocol/protocolISO fields to Card struct (e.g., "NFC-A", "ISO 14443-3A")
- Update SDK types and documentation with new protocol fields
- Add captured test data from ACR1552U, ACR122U, ACR1252U readers
- Add card detection unit tests
- Bump SDK version to 0.3.1

Author: AlbertMN

README.md

@@ -318,6 +318,8 @@ When reading a card with OpenPrintTag data (MIME type `application/vnd.openprint
 {
   "uid": "04:A2:B3:C4:D5:E6:07",
   "type": "NTAG215",
+  "protocol": "NFC-A",
+  "protocolISO": "ISO 14443-3A",
   "dataType": "openprinttag",
   "data": {
     "materialName": "PLA Galaxy Black",