Selecting property types not available in the select list

[msawczyn]

From #40:

We are using several db contexts. One of the contains enums we want to use in the other contexts. Because the Type-Property of entities is restricted to the select list we specified the type directly in the .efmodel file. Is there any reason not to remove the restriction of the type field in the designer?

(submitted by @Jonathan4083)

[msawczyn]

Added the option Restrict property types to the designer's option page (Tools/Options/Entity Framework Visual Editor). Default is true, but setting it to false and reloading the designer will allow any property type to be typed in. Note that no validation is performed when this is done, so a bad type can be added. Best to use the fully qualified name of the type since there isn't a good way to get a namespace import into that file.

[Jonathan4083]

Great, thanks a lot.