* In Kernel API exec return output metadata along with output items

* oops

* wip

* Propagate Kernel Exec errors upto 3rd party extension

* oops

* Found

* Misc

* Misc

* Misc

* Fix formatting

* Fix tests

* Fix tests

* Misc

* Revert changes

* Fixes

* Fixes

* wip

* Fixes

* Fix tests

* oops