hdl/*/wb-un_cross/*: add initial switching dsp support
hdl/*/wb_position_calc/*: integrate dsp chain with switching module
hdl/*/dsp_cores_pkg.vhd: move package and add new modules
hdl/*/Manifest.py: update various Manifests
scripts/*: add missing scripts and cosmetic changes

cherry-pick commit from branch master
hdl/*/wb_un_cross/*: remove package dependencies
hdl/*/wb_un_cross/*: remove custom_wishbone package reference
various: delete .orig and swap files
.gitignore: add .orig files
hdl/*/position_calc_core.ucf: more generic NET matching
hdl/*/wb_position_calc_core.vhd: fix wrong clock input
Merge branch 'devel'