[BLUEJ-1322] Method and class templates

We invariably tell our students to delete the code in the class template after creating a new class, before carrying on. (Sometimes they don't.) I realise we can provide a simpler class template with nothing in it, but I suggest it would be preferable to have an Insert Code option that would allow a student to insert a method body (and other structures) in a class, and keep the class template simple.

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Issue metadata

• Issue type: Task
• Priority: Medium