Added new pipelines commands (pipelines, streams, sinks, setup) [do not merge until 9/22] (#10612)

* Added new pipelines commands (pipelines, streams, sinks, setup), moved old pipelines commands behind --legacy

* Changed default cors origins in setup command

* Updated behavior for legacy pipelines, remove --legacy arg

* updated types, made rollover policy more clear, updated path copy, feedback

* Addressed PR comments, further isolated legacy behavior

* Now uses updateConfigFile to display workers/bindings instructions

* Updated stream/setup wrangler output to reflect pipelines binding now points to stream id

* Fixed pipelines get command, now consistent with others with --json arg

Author: jonesphillip

.changeset/fifty-foxes-win.md

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+"wrangler": minor
+---
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+Added new pipelines commands (pipelines, streams, sinks, setup), moved old pipelines commands behind --legacy