Avoid loading ICU data early during mono startup

[pavelsavara]

Current mono startup does
AssemblyNameParser -> CreateCultureWithInvariantData -> GlobalizationMode.Invariant -> GlobalizationMode.Settings.cctor -> LoadICU during startup.

This is attempt to postpone loading ICU until really needed.
It matters to Browser OS because we could start the runtime before the ICU data are finished downloading.

We could make this conditional for #if !TARGET_BROWSER if necessary.

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[pavelsavara]

Now we need to test/prove this is enough to start runtime without ICU data.

[pavelsavara]

Let's continue after #99924 landed

There is nice Log

[08:18:41] fail: [out of order message from the browser]: http://127.0.0.1:46569/_framework/dotnet.runtime.js 2 [MONO] System.TypeInitializationException: TypeInitialization_Type, <Module>
                  ---> System.TypeInitializationException: TypeInitialization_Type, Settings
                  ---> System.Exception: Pavel: Testing if this will fail during startup or only when in use
                    at System.Globalization.GlobalizationMode.Settings..cctor()
                    Exception_EndOfInnerExceptionStack
                    at System.Globalization.GlobalizationMode.Settings.get_Invariant()
                    at System.Globalization.GlobalizationMode.get_Invariant()
                    at System.Globalization.CultureData.GetNFIValues(NumberFormatInfo )
                    at System.Globalization.NumberFormatInfo..ctor(CultureData )
                    at System.Globalization.CultureInfo.get_NumberFormat()
                    at System.Globalization.NumberFormatInfo.<GetInstance>g__GetProviderNonNull|58_0(IFormatProvider )
                    at System.Globalization.NumberFormatInfo.GetInstance(IFormatProvider )
                    at System.Int32.TryParse(ReadOnlySpan`1 , NumberStyles , IFormatProvider , Int32& )
                    at System.Version.TryParseComponent(ReadOnlySpan`1 , String , Boolean , Int32& )
                    at System.Version.ParseVersion(ReadOnlySpan`1 , Boolean )
                    at System.Version.TryParse(ReadOnlySpan`1 , Version& )
                    at System.Environment.get_Version()
                    at System.Runtime.InteropServices.JavaScript.__GeneratedInitializer.__Net7SelfInit_()
                    at <Module>..cctor()
                    Exception_EndOfInnerExceptionStack

cc @kg

[pavelsavara]

closing in favor of #100141