ISO 14443a - multiple tags anticollision

[iceman1001]

The current implementation only allows for one tag to be found and selected. If two or more tags is on the RF field then it doesn't work.

1. support multiple tags.
2. offer a way to choose which tag to query a. either hf 14a info will auto query all found tags. b. offer to select one and query.
3. this goes for the rest of the 14a commands. huge effort

[iceman1001]

This paper implements a better anticollision on 14a.

ref: https://delaat.net/rp/2015-2016/p04/report.pdf

and here is that repo: https://github.com/zyronix/proxmark3

Some easy diff and you see the list* struct inside iso14443a.c