[CFT] packaging the base system with pkg(8)

[dan_partelly]

> 
> What should not happen is that this incremental step forward be blocked 
> by those unwilling to hash out the next steps.
> 
> -Alfred
> 
> 

While incremental steps forward are great, how do you avoid situations
like VNET, where a "good enough" enough implementation, usable in some 
scenarios lingered for years in kernel, but to this day it suffers from
leaks and bugs. Once you go down the path of enabling it in this state, 
chances are that it will stay that way for more than half a decade.