Fix documentation and sample code regarding SQLite data provider

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Westwind.Utilities dropped support for Microsoft.Data.Sqlite in https://github.com/RickStrahl/Westwind.Utilities/commit/f2bf12aa559aa580df64629c3812c4327986d0ad

This change is reflected here in Westwind.Globalization, documentation, tests and sample code.

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Ping.

[RickStrahl]

This was removed because of dependencies - we don't want to ship all the DB provider dependencies. How to deal with the other providers was left on the the todo list, but just adding the dependency to the project isn't going to happen unfortunately.

In full framework this was reasonably easy to deal with by not explicitly pulling in a package.

I think what's needed is to have separate packages for each provider supported to pull in the database packages. They don't even have to do anything other than have the package references and the specific provider support. I have to take a look at that - I don't even remember how the providers get loaded in the first place :-)

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but just adding the dependency to the project isn't going to happen unfortunately

This pull request is not about adding the dependency to the Westwind.Globalization project, but about fixing the documentation and sample code to match the current state (after commit RickStrahl/Westwind.Utilities@f2bf12aa559aa580df64629c3812c4327986d0ad). I updated the pull request title accordingly.