Specify OutputPanel language in action functions

[barnettwilliam]

Action functions should specify the language of output panels and the relevant language highlighting rules be loaded from the corresponding tool definition #194 (comment).

The following language imports in EducationPlatform should not be required

educationplatform/platform/src/EducationPlatform.js

Lines 7 to 10 in 75016a4

	import 'ace-builds/src-min-noconflict/mode-xml';
	import 'ace-builds/src-min-noconflict/mode-yaml';
	import 'ace-builds/src-min-noconflict/mode-java';
	import 'ace-builds/src-min-noconflict/mode-html';