Add solution catalog to help users who run into known problems

[tstromberg]

This extracts the nascent problem detection code from exit.go, and formalizes it in into a package that we can use for the upcoming network preflights (#3145).

Example output:

😄  minikube v0.35.0 on darwin (amd64)
🤹  Downloading Kubernetes v1.13.4 images in the background ...
🔥  Creating virtualbox VM (CPUs=2, Memory=2048MB, Disk=20000MB) ...

💣  Unable to start VM
> Error:         [VBOX_NOT_FOUND] create: precreate: VBoxManage not found. Make sure VirtualBox is installed and VBoxManage is in the path
> Solution:      Install VirtualBox, ensure that VBoxManage is executable and in path, or select an alternative value for --vm-driver
> Documentation: https://www.virtualbox.org/wiki/Downloads
> Related issues:
  - https://github.com/kubernetes/minikube/issue/3784
  - https://github.com/kubernetes/minikube/issue/3776

😿  If the solution does not help, please let us know:
👉  https://github.com/kubernetes/minikube/issues/new

This also renames exit.WithProblems to exit.WithLogEntries to avoid the terminology mismatch.

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[afbjorklund]

Looking good! This should hopefully cut down on the amount on "VM lost" and "Corporate proxy" issues ?

[afbjorklund]

maybe call this "re()", or perhaps that is just me mixing it with r'' raw strings (from python...)