Select template for app/blade creation on user interface

[oniseijin]

Currently when creating a blade from the GUI, only the default is supported; a select box that knows what templates are available would be ideal. The is supported on the command line.

On a high level:

• brjs-sdk../system-application BRJS app needs to support the additional select box (or text input if finding out is too challenging). There would be service and gui changes
• system-app-servlets../RestApiService.java and RestApiServlet are the main server side changes.
• There is a servlet link between client and server side as well to support.

Doesn't seem to be a huge effort for someone familiar with the client/server code base, and has the general build/deploy structure in place.

Now that there are more than default templates in the main system,, #1665, this has more value than before.

[oniseijin]

At the same time, creating an "app" from the aspect information with a different template would be equally as useful, changing description