HitagS Improvements (#721)

* support of HITAG S standard communication mode
* fixed wrong AC (Anti Collision) decoding
* support of block read mode
* fixed wrong uid send when using simulation
* support of communication mode parameter  (client is backward compatible)
* support of start-page parameter (important for some weird tags) (client is backward compatible)
* also expect pages if tag memory size in con0 is 11 (we got some tags)
* corrected hitagS reader cmd help