Resolve L2SS-474 "2021 11 08 add delays"

Added monitor and control points for the delays to the SDP. Closes L2SS-474

tangostationcontrol/tangostationcontrol/devices/sdp/sdp.py

@@ -161,6 +161,10 @@ class SDP(opcua_device):
     FPGA_bsn_monitor_input_nof_valid_R = attribute_wrapper(comms_annotation=["FPGA_bsn_monitor_input_nof_valid_R"], datatype=numpy.int32, dims=(N_pn,))
     FPGA_bsn_monitor_input_nof_err_R = attribute_wrapper(comms_annotation=["FPGA_bsn_monitor_input_nof_err_R"], datatype=numpy.int32, dims=(N_pn,))
 
+    FPGA_signal_input_samples_delay_R = attribute_wrapper(comms_annotation=["FPGA_signal_input_samples_delay_R"], datatype=numpy.uint32, dims=(S_pn, N_pn))
+    FPGA_signal_input_samples_delay_RW = attribute_wrapper(comms_annotation=["FPGA_signal_input_samples_delay_RW"], datatype=numpy.uint32, dims=(S_pn, N_pn), access=AttrWriteType.READ_WRITE)
+
+
     # --------
     # overloaded functions
     # --------