Combine Steering and TO Committees (#1587)

* Combine Steering and TOC committees; merging current memberships and establishing process for future 1-election-per-year schedule.

* Add total company representation limits

* Fix my company affiliation

* Update STEERING-COMMITTEE.md

Co-authored-by: Roland Huß <rhuss@redhat.com>

* Clarify and correct a bunch of inconsistencies pointed out by rhuss and aliok

* Update STEERING-COMMITTEE.md

* Updates from Paul and David Hadas, including an explicit waiver of company diversity for the 2024 combined committee.

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Co-authored-by: Roland Huß <rhuss@redhat.com>
Co-authored-by: David Hadas <david.hadas@gmail.com>