Mark EIP-4361 for Review (ethereum#5034)

* Mark EIP-4361 for Review

* Move reference impl section out of EIP

* This contains some fixes, only informative, no normative changes...

* fix: fixed reference links

* fix: added reference implementation based on v1.1.6

* fix: undoing must since not in the core spec

* fix: fixed typo

* remove licenses from ref impl and update with file locations

* updated spec and added new reference implementation

* removed period from title

* Remove added .DS_store

* EIP-4361 editor feedback

* Update EIP-4361 Contract Address Guidelines

* Update EIP references, rationale section name, and title

* Moved security considerations section to proper location

Co-authored-by: Oliver Terbu <oliver@awoie.local>
Co-authored-by: Sam Wilson <sam.wilson@mesh.xyz>
Co-authored-by: Wayne Chang <wayne@spruceid.com>