Portals and others

+ End and nether portals with configurability
+ Bed homes
+ Cauldrons fill
+ Added time and weather saving
* ~~Fixes #1066~~
* Fixes #1012, fixes #1194

Portals don't construct/search for a destination portal yet.
I'd prefer a structure with named mebers, instead of "nameless" std::pair's `first` and `second`.

Also, comment says "value is to delay", *does not compute*.