Description

A developer should be able to search for an Orchestration by its filename, much like an unnamed GDScript class and to view its associated documentation like other script languages, i.e.:

Implementation ideas

This requires four changes:

1. OScriptLanguage::get_type() should return OScript::get_class_static() rather than Orchestrator.
2. The language's icon should be registered with OScript::get_class_static() in plugin.cpp.
3. OScriptLanguage::_supports_documentation() should return true.
4. OScript::_get_documentation() should return the documentation metadata.