Basic Java IDE Setup

[molly-moen]

Add the plumbing for a java ide. The IDE will be available at studio.code.org/java_ide for admins and levelbuilders (this is a temporary url until we integrate more fully with code studio).
The ide currently consists of only an Ace editor in Java mode--more will be added as a follow up. The editor will copy its contents out to the console.

Links

• jira

Testing story

Tested locally that page is appropriately locked down and the editor is functional.

Reviewer Checklist:

• Tests provide adequate coverage
• Privacy and Security impacts have been assessed
• Code is well-commented
• New features are translatable or updates will not break translations
• Relevant documentation has been added or updated
• User impact is well-understood and desirable
• Pull Request is labeled appropriately
• Follow-up work items (including potential tech debt) are tracked and linked

[jmkulwik]

LGTM!