Add @damiannolan as full code owner of ibc-go (cosmos#2485)

## Summary

For the past year I've had the absolute pleasure of working alongside @damiannolan. He has contributed immensely to the repository while simultaneously growing his knowledge of ibc and expertise of ibc-go. He helped us finalize releases for v3, v4, v5 and soon to be v6. He has had [163 PR's merged](https://github.com/cosmos/ibc-go/pulls?q=is%3Apr+author%3Adamiannolan+is%3Amerged+) and opened [61 issues](https://github.com/cosmos/ibc-go/pulls?q=is%3Apr+author%3Adamiannolan+is%3Amerged+). I trust @damiannolan's decision making regarding changes to ibc-go as if it were my own. Most importantly I enjoy every moment of working alongside @damiannolan 

It is my pleasure to propose @damiannolan be added as a full code owner of ibc-go!  🎉 🎉 🎉

Author: colin-axner

.github/CODEOWNERS

@@ -9,12 +9,12 @@
 
 # CODEOWNERS for the CODEOWNER file
 
-/.github/CODEOWNERS @colin-axner @AdityaSripal @crodriguezvega
+/.github/CODEOWNERS @colin-axner @AdityaSripal @crodriguezvega @damiannolan
 
 # CODEOWNERS for the core IBC module
 
-/modules/core/ @colin-axner @AdityaSripal 
-/proto/ibc/core/ @colin-axner @AdityaSripal 
+/modules/core/ @colin-axner @AdityaSripal @damiannolan
+/proto/ibc/core/ @colin-axner @AdityaSripal @damiannolan
 
 ## CODEOWNERS for core/02-client
 
@@ -28,8 +28,8 @@
 
 # CODEOWNERS for ICS 20
 
-/modules/apps/transfer/ @colin-axner @AdityaSripal 
-/proto/ibc/applications/transfer/ @colin-axner @AdityaSripal 
+/modules/apps/transfer/ @colin-axner @AdityaSripal @damiannolan
+/proto/ibc/applications/transfer/ @colin-axner @AdityaSripal @damiannolan
 
 # CODEOWNERS for interchain-accounts module