Export character skill sheet in Pyfa clipboard format

[cdanis]

Pyfa has a very simple format for importing/exporting character skills to and from the clipboard.

Here's an example for the built-in all-0s character:
https://gist.github.com/cdanis/aaa933d5c0bb8f20335a7dc9bd66e156

While Pyfa exports skills in sorted order, this isn't required in the import; any order is allowed there.

Any skills not listed in the text blob are not updated upon import into Pyfa, so, the safe thing to do is always list all skills (even if 0s).

This would be useful for quickly validating by hand that a fit works for a given pilot, or for optimizing a custom fit for them. Export from roster, import into Pyfa, done.