added bsn monitors to sdp_statistics_offload

...far2_unb2b_sdp_station/lofar2_unb2b_sdp_station.fpga.yaml

...2_unb2b_sdp_station/src/vhdl/lofar2_unb2b_sdp_station.vhd

...b2b_sdp_station/src/vhdl/mmm_lofar2_unb2b_sdp_station.vhd

...far2_unb2c_sdp_station/lofar2_unb2c_sdp_station.fpga.yaml

...2_unb2c_sdp_station/src/vhdl/lofar2_unb2c_sdp_station.vhd

...b2c_sdp_station/src/vhdl/mmm_lofar2_unb2c_sdp_station.vhd

...ons/lofar2/libraries/sdp/src/vhdl/node_sdp_beamformer.vhd

...ons/lofar2/libraries/sdp/src/vhdl/node_sdp_correlator.vhd

...ons/lofar2/libraries/sdp/src/vhdl/node_sdp_filterbank.vhd

applications/lofar2/libraries/sdp/src/vhdl/sdp_pkg.vhd

applications/lofar2/libraries/sdp/src/vhdl/sdp_station.vhd

.../lofar2/libraries/sdp/src/vhdl/sdp_statistics_offload.vhd