Refactor EditorUtils and AbstractEditorOperation
Initial implementation of go Oracle Open definition.
Completed editor opening aspect of Open Definition.
Refactoring of GoProjectEnvironment and GoEnvironment. Fix.
Fix NPE in GoProjectEnvironment
Fix bug in GoOracleFindDefinitionOperation
Add json bundle to feature and build.
Minor refactoring of AbstractUIOperation.
Add Open Definition functionality using Go oracle.
Add "F3" key binding and context menu for oracle OpenDef.
Move tooling tests to tooling plugin. Not the best way to do it, but...
Fix: use correct monitor.
Fix oracle OpenDef NPE when Go package not found.