Add C<interface> token
Implement reference changes to v1.1
Annotate in MetaPOD::JSON v1.1.0
Update self structure showing interface data
Tidy, Critic
Update Changelog
update README
v0.2.0

 [!Noteworthy Changes]
 - Adds MetaPOD::JSON v1.1 SPEC and Support
 - Adds 'interface' tag.