Technical Committee (#3041)

* Add copy of council seats as elections module.

* Split council into collective and elections modules.

Make collective instanceable.

* Propagate changes to the runtime and fix origin/event

* insert_ref and put_ref to avoid copies.

* Add tests

* Fix up collective's tests

* One more test

* Fix elections module tests

* Missed merge line

* Minor fix

* Test fixes

* Line widths

* Line widths

* Rntime version

* Remove comment

* Deduplicate

* Bump runtime again

* Fix test