Increase socket connection retry delay and add socket onclose event

[jramsay]

Changes proposed:

• Increase socket connection retry delay, 1, 2, 4, 8, 16s
• add onclose event to capture close events
• https://www.rfc-editor.org/rfc/rfc6455#section-7.4.1

Other Tasks:

• If you updated the Go SDK did you update the PackageVersion in tunnels.go
• [X ] If you updated the TS SDK did you update the dependencies in package.json for connections and management to require a dependency that is > the current published version(Found using npm view @microsoft/dev-tunnels-contracts). This will fix issues where yarn will pull the old version of packages and will cause mismatched dependencies. See example PR