Track method documentation changes

[rtholmes]

Methods often have documentation that directly precedes their signatures (e.g., javadoc). While a change to documentation is not a change to the method, it is definitely associated with the method. This feels somewhat analogous to the Annotation change support introduced in #1 and should be handled similarly.

[rtholmes]

@ishtiaque05 is this something you'd be able to add like you did for #1?

[braxtonhall]

Should be easy! MethodDeclaration has method.hasJavadoc() and Javadoc has javadoc.toText()

[ishtiaque05]

Yup I can add that up unless @braxtonhall haven't already implemented it 😄

[ishtiaque05]

Java implementation for Ydocchange change: #65 Python and typescript implementation for Ydocchange: #69