feat: implement ics-721-nft-transfer

[dreamer-zq]

Description

closes: #1444

---

Before we can merge this PR, please make sure that all the following items have been
checked off. If any of the checklist items are not applicable, please leave them but
write a little note why.

• Targeted PR against correct branch (see CONTRIBUTING.md)
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
• Code follows the module structure standards.
• Wrote unit and integration tests
• Updated relevant documentation (docs/) or specification (x/<module>/spec/)
• Added relevant godoc comments.
• Added a relevant changelog entry to the Unreleased section in CHANGELOG.md
• Re-reviewed Files changed in the Github PR explorer
• Review Codecov Report in the comment section below once CI passes

[codecov-commenter]

Codecov Report

Merging #1467 (df7ce8b) into main (9ed5ca4) will decrease coverage by 0.64%.
The diff coverage is 42.65%.

@@            Coverage Diff             @@
##             main    #1467      +/-   ##
==========================================
- Coverage   80.36%   79.71%   -0.65%     
==========================================
  Files         166      173       +7     
  Lines       12105    12316     +211     
==========================================
+ Hits         9728     9818      +90     
- Misses       1920     2035     +115     
- Partials      457      463       +6     

Impacted Files	Coverage Δ
modules/apps/nft-transfer/types/ack.go	0.00% <0.00%> (ø)
modules/apps/nft-transfer/types/keys.go	0.00% <0.00%> (ø)
modules/apps/nft-transfer/types/packet.go	32.35% <32.35%> (ø)
modules/apps/nft-transfer/types/trace.go	35.63% <35.63%> (ø)
modules/apps/nft-transfer/types/codec.go	55.55% <55.55%> (ø)
modules/apps/nft-transfer/types/genesis.go	66.66% <66.66%> (ø)
modules/apps/nft-transfer/types/msgs.go	70.21% <70.21%> (ø)

[faddat]

Thanks so much for your work here!

I've gone ahead and updated your branch to sdk 46, and you can find the resulting work here:

#1484