models/blackboxes/*: remove DDS LUTs

They are not supposed to be here.
The correct place is in a directory
next to the positicon_calc_core module
hdl/modules/*/dds_lut/*: differentiate between LUT types

Now, we have two different types of LUTs. One with
35 poins and another with 50 points. They are used
for different accelarator parameters
hdl/modules/*/generated/virtex6/: change LUT filename

WARNING! This approach is not good as this file
is automatically generated by Sysgen!
hdl/modules/*/generated/artix7/: change LUT filename

WARNING! This approach is not good as this file
is automatically generated by Sysgen!
hdl/modules/sw_windowing/window.ram: regenerate window LUT

The previous LUT had 1000 points which is NOT
the correct number of points, considering that
the FOFB decimation factor is 1112
hdl/modules/wb_position_calc/*: fix decimation factor

Fix number of points in module to match
the window size