Ported the FIFO IP to ip_arria10_fifo library..

libraries/technology/ip_arria10/fifo/README.txt

libraries/technology/ip_arria10/fifo/generate_ip.sh

libraries/technology/ip_arria10/fifo/ip_arria10_fifo_dc.vhd

...ology/ip_arria10/fifo/ip_arria10_fifo_dc_mixed_widths.vhd

libraries/technology/ip_arria10/fifo/ip_arria10_fifo_sc.vhd

libraries/technology/ip_arria10/fifo/quartus/fifo.qpf

libraries/technology/ip_arria10/fifo/quartus/fifo.qsf