zef install . fails (MIME::Types)

[camstuart]

When running zef install . from the examples directory, an error occurs:

===> Failed to find dependencies: MIME::Types

See also: raku-community-modules/MIME-Types#8

[JJ]

But the problem here is that it's not released. Might or might not fail...

[coke]

MIME::Types appears to be in the ecosystem now (I already have it installed).

The install still fails, but now it's because the tests fail: see #80

(also we should consider making this not installable, it looks like it's just convenience libs that aren't meant to be shared)