Support advanced types in fields and functions

[TwitchBronBron]

We should add support for type system types in the field type attribute, and referencing actual functions in field onchange event and customization handlers and interface function

<component >
    <interface>
        <field id="state" type="mynamespace.enums.State" onchange="someNamespace.someCallback" />
        <function name="someNamespace.someFunction" />
    </interface>
    <customization suspendhandler="someNamespace.someFunction" />
    <customization resumehandler="someNamespace.someFunction" />
</component>