Added regression_test_vhdl, but without tb.

libraries/technology/clkbuf/hdllib.cfg

libraries/technology/ddr/hdllib.cfg

libraries/technology/fifo/hdllib.cfg

libraries/technology/flash/hdllib.cfg

libraries/technology/fpga_temp_sens/hdllib.cfg

libraries/technology/fpga_voltage_sens/hdllib.cfg

libraries/technology/fractional_pll/hdllib.cfg

libraries/technology/hdllib.cfg

libraries/technology/iobuf/hdllib.cfg

libraries/technology/memory/hdllib.cfg

libraries/technology/mult/hdllib.cfg

libraries/technology/pll/hdllib.cfg