Add support to ignore .svn folder

[Bashe]

Can you extend the ignore support to include ".svn" as well in addition to ".git" Actually when I think, maybe also ".hg"?

Thanks in advance!

[archseer]

You can add those in your global .ignore file. https://docs.rs/ignore/0.1.6/ignore/struct.WalkBuilder.html#ignore-rules

[pickfire]

.ignore seemed like a temporary solution but I also wonder if it is worth maintaining a separate .svn ignore given that its popularity is far from git, but if someone do send a pull request I wouldn't mind helping to do a review.

[kirawi]

If there's an effort made into supporting it, maybe it would be better to add it to ignore.

[simrankedia]

@pascalkuthe Raised another PR - let me know if you have any feedback, thanks.