This may fix the WRs locking offsets issue & save a lot of FPGA resources.
Signed-off-by: Grzegorz Daniluk <grzegorz.daniluk@cern.ch>

Endpoint-RX_PAUSE: changing configuration to allow enabling both kinds of PAUSE (802.3 and 802.1Q), fixing bug for 802.3 - remembering wrong quanta

Endpoint-tx-injection: added handling situation when requested template is empty, prepared signals for RMON counters

endpoint/rx_path[bugfix]: masking out RTU request for received PAUSE frames (these frames never exit Endpoint). The bug (RTU request for no frame) where causing SWcore to go crazy

endpoint: added handling of priority-based Flow Control, exposed information about received PAUSE frames outside Endpoint - to be used by SWcore

endpoint: bugfix on tx path - frames to be transmitted where lost (not exited endpoint) if the start-of-cycle occured on stall (when the internal dreq was low)

pFilter: changed simulation driver so that the same mircocode can be nicely loaded many times to many ports

endpoint: small bugfixes in injection module and tx header processor + adding missing description to wbgen file

bugfix in eth packet simulation class. It was not possible to set pck size at initialization (new function) -- bug fixed

Endpoint: bugfix in h/w pck injection. The EOF signal generated when injecting h/w pck was not passed on the fabric.