Change codepage name 'mac-centraleurope' to 'x-mac-ce'

[Rustam]

Hello!

Change codepage name 'mac-centraleurope' to 'x-mac-ce'.

Because in .NET so (see code-page-identifiers or EncodingTable.Data.cs).

[Julian Verdurmen]

If we do Encoding.GetEncoding, will the latter retrieve an encoding? And the first?

[Rustam]

If we do Encoding.GetEncoding, will the latter retrieve an encoding?

Yes (see doc or example-on-sharplab).

And the first?

I think this is true for non win32 APIs

[Rustam]

Now it's part #78