Add Dockerfile

[mrusme]

This project should contain a Dockerfile that can be run by anyone who's not keen running it natively. Since it's a TUI, it should be possible to run it attached.

Running it in a container also has the benefit that it allows people to restrict IPFS' resource use even further and more strict.

[trite8q1]

Hi,
I'd love to take this on, since I'm currently getting into Docker anyway.

[mrusme]

I'd happily wait for your PR!