Cosmos: Facility to auto-create stored procedure where client is sufficiently privileged

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Provisioning of the stored procedure is presently an explicitly separated act, driven by Equinox.Cli init, which fits in with DDL/DML separation concepts etc.

However, in practice
a) keys are often provisioned with both DML (manipulate data) and DDL (create proc) permissions
b) as stored procedures are revised, new editions may need to be added

For the above, reasons, the connector should gain a ?provisionStoredProcNow parameter that attempts to add if not present when requested

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In implementing this via #65, I ended up flipping the default to be on