Expose temporary channel ID and user channel ID pre-funding#1121

Merged

TheBlueMatt merged 3 commits intolightningdevkit:mainfrom

TheBlueMatt:2021-10-return-temp-id

Oct 16, 2021

Commits on Oct 13, 2021

Return the temporary channel id in success from `create_channel`
TheBlueMatt
committed
Include the user channel id counter in Event::ChannelClosed
TheBlueMatt
committed

Commits on Oct 16, 2021

Rename create_channel param to user_channel_id to standardize it
TheBlueMatt
committed