DAC_SPI.vhd added
corrected frequency in top file
add git submodules to ip_cores folder
First Manifest files
Track gsi branch on wrpc-sw and wes_wip on wr-cores
lpc_uart: moved to bel-cores from wr-cores
scu_bus: rebuilt project file using hdlmake => synthesizes
added contents of external repositories (aux_functions, function_generators, scu_bus slave)
added Manifest for scu_addac