Automatically install libraries

[guseggert]

Multliple times I've run into scenarios where DataDM would like to use a library that is not installed, such as when I ask it to plot data on a map. If I ask it to install the library, it complains that it can't, but it does it anyway. It'd be nice if it just installed required dependencies automatically, esp for hosted DataDM which is run in a Docker container such that installing deps is a bit safer.