Update of the Scalp router and its internal architecture.

...s/vivado/scalp_firmware/2020.2/src/hdl/scalp_firmware.vhd

ips/hw/scalp_router/src/hdl/scalp_axis_to_sp.vhd

ips/hw/scalp_router/src/hdl/scalp_booking_vector.vhd

ips/hw/scalp_router/src/hdl/scalp_fifo_double_register.vhd

ips/hw/scalp_router/src/hdl/scalp_matrix_index.vhd

ips/hw/scalp_router/src/hdl/scalp_router.vhd

ips/hw/scalp_router/src/hdl/scalp_router_core.vhd

ips/hw/scalp_router/src/hdl/scalp_router_interface.vhd

ips/hw/scalp_router/src/hdl/scalp_rx_side.vhd

ips/hw/scalp_router/src/hdl/scalp_scheduler.vhd

ips/hw/scalp_router/src/hdl/scalp_scheduler_ack.vhd

ips/hw/scalp_router/src/hdl/scalp_sp_to_axis.vhd

ips/hw/scalp_router/src/hdl/scalp_tx_fanout.vhd

ips/hw/scalp_router/src/hdl/scalp_tx_side.vhd