MLC refactor

[luserx0]

@aparcar
We have done some discussions and Paul has put into work mlc-ng.

Currently Mesh Linux Containers offer three capabilities:

• Emulating with debian lxc containers,
• VirtualBox support (with KUbuntu),
• Emulating with openwrt lxc containers(?)

From these I have observed three results:

1. I have no idea how and whether the openwrt support still works,
2. lxc1 (which can be observed here is neither able to be resolved in newer KUbuntus and Debian (these I've tested on) and I found success into working with MLC not with lxc v1.0 or even v1.1, but with https://github.com/lxc/lxc/tree/stable-2.1
3. The mlc-setup-host.sh script uses some true/false flags at the bottom, which I have slight clues of how they might work

I believe that at the very least MLC should be reworked on its own and periodically port functionality to mlc-ng. MLC-ng should be the ultimate goal, because of it's potential of adding CI/CD workflows in BMX7.

At last, I think mlc is an integral part of bmx7 development and the two should go hand in hand