Localization support

[Deadpikle]

Localization support was psuedo-dropped for 2.0 due to time purposes. Users can always create their own UI, of course, but our built-in UIs should support localization. It would also be nice if localization was supported via the core NetSparkle DLL rather than being in the UI factories. (Is that possible?)

• [ ] Investigate whether moving all UI localization to the core NetSparkle is possible in a way that is .NET Framework and .NET Core compatible. We already have a Resources.resx there, so surely it should be possible?
• [ ] Move all localized strings to core NetSparkle
• [ ] Update strings based on new 2.0+ usage
• [ ] Update built-in UIs to use the new localization strings
• [ ] Test and make sure everything works
• [ ] Make sure date formats are setup properly or easily configurable for release notes (see #334)
• [x] Short term: Make sure JA is listed in the csproj for embedded resources

[flemingm]

Questions: should JA resource be listed in 👍 https://github.com/NetSparkleUpdater/NetSparkle/blob/develop/src/NetSparkle.UI.WinForms.NetFramework/NetSparkle.UI.WinForms.NetFramework.csproj

[Deadpikle]

Probably. Good catch.