Expose patched function name in aspects framework about appmetrics

[seabaylea]

@tunniclm Any view on the addition of the patched function name as a new last parameter passed to the supplied before and after callbacks?

Note that this only applies to aspect.before(), aspect.after() and aspect.around(). The aspect.aroundCallback() call doesn't take a function name - you should already have that from a previous call to aspect.before() or aspect.around().

[tunniclm]

@seabaylea This approach seems reasonable to me, adding as the last argument should prevent breakage of existing usage code.

[seabaylea]

Closing with PR #49