hdl/modules/*/generated/virtex6/*: Change FOFB decim factor

The FOFB rate now has a decimation factor
of 1000 instead of 1112. In this way, the
BPM numerology gets much easier
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 FOFB decim factor

The FOFB rate now has a decimation factor
of 1000 instead of 1112. In this way, the
BPM numerology gets much easier
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/*: add window fucntion compatible with octave

The previous windowgen funcion had some particularities
regarding MATLAB. Now, a new function was created compatible
with OCTAVE
hdl/modules/sw_windowing/*: add 500-point length window

This window is used for a switching frequency of
1000 rate in relation to the ADC clock
hdl/modules/wb_position_calc/*: change Window LUT to 500-point