Replace copies of RuntimeConfig with RuntimeConfigProvider

[aaronburtle]

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As laid out in the design document https://microsoft.sharepoint.com/:w:/r/teams/AzureDataMultiverseExperience/_layouts/15/Doc.aspx?sourcedoc=%7B0026b3cf-cc3e-4ce7-8b7d-865c17151f4d%7D&action=edit&wdPid=4859d50d&share=IQHPsyYAPsznTIt9hlwXFR9NARKmccDqULBmAGCcOV2MzhQ there are classes we currently use, such as the SqlMetaDataProvider, OpenApiDocumentor, and CostmosSqlMetaDataProvider, that save internal copies of the RuntimeConfig. These classes instead should have a copy of the RuntimeConfigProvider, and when a runtimeconfig is needed they should instead get that runtimeconfig from the provider as needed. This will cause the runtimeconfig to always be the most up to date copy.

[seantleonard]

@aaronburtle the design doc is not publicly accessible. Doesn't need to be referenced here unless you end up created a markdown file to include in this repo

[aaronburtle]

@aaronburtle the design doc is not publicly accessible. Doesn't need to be referenced here unless you end up created a markdown file to include in this repo

thanks for pointing that out Sean, ill remove from these issues.