Bucket names with dashes in them cause errors in mocks

[mateomurphy]

I'm running into an issue when trying to mock google storage:

storage = Fog::Storage::Google.new({
  :google_storage_access_key_id => "id",
  :google_storage_secret_access_key => "key"
})

bucket = storage.directories.create(key: "name")

pp bucket.files.all # returns []

bucket = storage.directories.create(key: "name-with-dashes")

pp bucket.files.all # raises Excon::Error::BadRequest

This happens because this line of code rejects names that have non word characters in them:
https://github.com/fog/fog-google/blob/master/lib/fog/storage/google_xml/requests/get_bucket.rb#L52

However according to google's documentation, dashes, underscores and dots are legal:
https://cloud.google.com/storage/docs/buckets#naming

[mateomurphy]

BTW I forked and modified this, and can submit a PR if that would be helpful

[Temikus]

@mateomurphy very! Please do 🙏