Initial merge of CASE and UCO voting procedures

[plbt5]

No description provided.

[ajnelson-nist]

This PR needs to specify:

• Quorum.
• Voting procedure respecting majority per class, and 3 of 4 voting classes being present.

This PR, or a follow-on PR, needs to specify:

• E-voting vs. in-person (rather, on-call) voting.
• When the "~10-day discussion periods" start.
• How soon before a meeting a proposal can be posted with "Sufficient notice" for a review discussion. 48 hours? N business days?

[ajnelson-nist]

Also, we no longer have a Bylaws document in CASE, UCO, or CDO; but, we do have a Technical Charter for CDO that defines the voting classes. That charter does not define voting procedure except for the TSC.