BP class variables aren't created for component templates not loaded in an uncooked server build due to component class NeedsLoadForServer() API override.

See UDN thread for details.

Essentially we need to ensure that class variables are created for SCS components even if the template isn't loaded as a result of a NeedsLoadForServer() API override. Otherwise we can end up with a compiler error on load due to missing variables for existing 'Get' nodes.

1. Launch QAGame editor.
2. Create a new BP class based on Actor (e.g. - BP_Test) and open it in the Blueprint class editor.
3. Add a TextRender component in the components tree view.
4. Add a variable get node to the event graph for the TextRender component and hook it up to a PrintString node attached to the BeginPlay event.
5. Compile and save the Blueprint class and close the Blueprint editor window.
6. Add a new instance of the Blueprint class to the level and save it as a new map (e.g. MyTestMap).
7. Close the editor and relaunch as an uncooked dedicated server (command line example: 'QAGame MyTestMap -log -server -nomcp').
8. The BP class should warn about missing the var during compile-on-load:
   [2016.08.17-21.44.59:373][ 0]LogBlueprint:Warning: [BP_Test] CreatePinForVariable: 'TextRender' variable not found. Base class was probably changed.

Expected result: The Blueprint compiles without warning when launching as an uncooked dedicated server.