Jump-Location doesn't work with PSReadLine

[vors]

PSReadLine use worker thread to capture user input. That prevents generation of OnIdle events, because engine is never OnIdle.

Jump-Location subscribe UpdateTime callback to OnIdle events.

Maybe this should be addressed in PSReadLine.

[vors]

cc @lzybkr

[vors]

Corresponding issue for PSReadLine https://github.com/lzybkr/PSReadLine/issues/169