Add reflectometer testbench stable boilerplate with tasks

designs/reflectometer_base/Makefile

@@ -17,6 +17,7 @@ RTL_DIR = ../../rtl
 include ../../scripts/vivado.mk
 
 SYN_FILES += reflectometer.sv
+SYN_FILES += tb_reflectometer.sv
 SYN_FILES += $(sort $(shell find ../../rtl -type f \( -name '*.v' -o -name '*.sv' \)))
 
 XCI_FILES = $(sort $(shell find ../../rtl/ethernet-udp/src -type f -name '*.xci'))