Maintenance: Move DynamicDataOptions

[dwcullop]

Description

• Moved DynamicDataOptions to its own file
• Moved DynamicDataOptions to the top-level namespace

[dwcullop]

@RolandPheasant If this is what you had in mind, then accept it at your leisure. Or save it for later if you're not ready to make the breaking change.

Later we can discuss if we want to put a read/write IScheduler property on it and then have GlobalConfig.DefaultScheduler forward to that value (or update all the instances to point to it).

[RolandPheasant]

@glennawatson / @ChrisPulman this is a minor break which changes the namespace of an object that was introduced in the last release. It is correcting an error, so although technically a breaking change I do not intend to bump the major version

[glennawatson]

Likely doesn't impact us then. The rxui integration uses methods that have existed for quite some time.

[github-actions]

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