Implement LF RFID emulation (#208)

* migrate code from old repo, not work
* fix emulation
* disable irq handling while RFID emulating
* add testcase

wiki/testing/NFC-LF-RFID-test.md

@@ -0,0 +1,27 @@
+## Check LF RFID
+
+1. Go to LF RFID workaround app
+2. See "LF RFID/OFF/125 kHz" on the screen
+3. Read Flipper by EM4100 reader
+4. Press ok
+5. See "ON" on the screen
+6. Check 125 kHz signal on RFID antenna by oscilloscope
+7. Take EM4100 tag, place 20 mm from antenna
+8. Get signal on demodulator output (RFID_IN)
+9. Exit LF RFID app
+
+## Check NFC
+
+1. Go to NFC app
+2. See "NFC timeout" on the screen
+3. Place NFC tag directly on the antenna
+4. See "NFC device found" and check type
+5. Exit NFC app
+
+For compatibility check:
+
+1. make LF RFID test
+2. make NFC test
+3. Reboot device (issue with app loader don't allow run many apps)
+4. make NFC test
+5. make LF RFID test