Just cleanups...

* removed filter functionality for DILs that don't provide this.
* removed redundant defines and enums
* removed CRT_SECURE_NO_DEPRECATE, so that we see what needs to be changed
* removed unused MCNet stuff

Signed-off-by: Tobias Lorenz <tobias.lorenz@etas.com>
Merge branch 'master' of https://etas-lorenz@github.com/rbei-etas/busmaster.git