1208: [WIP] Goto for Macro's r=matklad a=Lapz Adds goto definition for macros. Currently only works for macros in the current crate ~~otherwise it panics~~. Proper macro resolution needs to be added for it to resolve macros in other crates. Todo - [X] Allow goto from macro calls - [X] Fix panics - [x] Add tests  Co-authored-by: Lenard Pratt <l3np27@gmail.com>