Add a skeleton prototype for NewFile dialog rewritten in WPF

[ciplogic]

NewFile dialog is rewritten using my knowledge of WPF. The code is not fully cleaned up but it shows a good enough starting prototype that is hidden under the define: EXPERIMENTAL_NEW_FILE.

This dialog is made as a prototype and I'm requesting help and RFC.

To enable this dialog you have to go to: UiService and enable the define:

define EXPERIMENTAL_NEW_FILE

Known errors/bugs:

• OK button does nothing
• Item images are not loaded
• Resource items (I mean mostly pictures) are not working

The diff is a bit big, as I'm working using Visual Studio. I will clean the patch as I will find how to fix it (maybe I will use a merge tool to revert the unimportant changes).

Please try the "new" dialog and help me fix mostly the resources part with WPF (and make the dialog translatable).

[ciplogic]

Partially fixed more bugs but I would be glad for review and support still.

What is fixed:

• description of items is correct
• there is a partial OK button implementation but I'm not sure if it matches the original

Still missing:

• resource mapping in categories
• feature parity with older dialog: like setting automatically a name
• validate form