In analogy to `ChannelClosed` we should add a simple `ChannelOpened` event that signals that a newly opened channel is now usable. This however depends on upstream PR https://github.com/lightningdevkit/rust-lightning/issues/1394
In analogy to
ChannelClosedwe should add a simpleChannelOpenedevent that signals that a newly opened channel is now usable.This however depends on upstream PR lightningdevkit/rust-lightning#1394