CppEditor/CppTools: Move FunctionHelper to CppTools

...and rename it to FunctionUtils.

Change-Id: If076ec01fd82e8ba728764bdeab7e87e8bc1ff3b
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>
Clean up {classview,cppeditor,cpptools}.{pro,qbs}

Mostly reordering files alphabetically.

Change-Id: Ibad1fa75559218fe488d1b31c7200ba4ff6131fe
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>
CppEditor: Introduce C++ Code Model Inspector

By default invokable via Ctrl+Shift+F12.

Change-Id: If8d61233b6d38d12131718f7c20bf40f76bc9ae4
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>