Ported FIFO IP for Arria10.

libraries/technology/fifo/hdllib.cfg

libraries/technology/fifo/tech_fifo_component_pkg.vhd

libraries/technology/fifo/tech_fifo_dc.vhd

libraries/technology/fifo/tech_fifo_dc_mixed_widths.vhd

libraries/technology/fifo/tech_fifo_sc.vhd