Add CW721 wrapper for ERC721

[codchen]

Describe your changes and provide context

Add a CosmWasm wrapper following the CW721 spec over an underlying ERC721 contract. Note that since ERC721 doesn't have burn in its spec, the burn function on the CW wrapper will always return an error.

Testing performed to validate your change

local sei test
unit tests

[codecov]

Codecov Report

Attention: 76 lines in your changes are missing coverage. Please review.

Comparison is base (7241f2c) 64.23% compared to head (acf08be) 63.93%.

Additional details and impacted files

@@            Coverage Diff             @@
##              evm    #1264      +/-   ##
==========================================
- Coverage   64.23%   63.93%   -0.30%     
==========================================
  Files         344      346       +2     
  Lines       22805    22987     +182     
==========================================
+ Hits        14648    14696      +48     
- Misses       7350     7472     +122     
- Partials      807      819      +12     

Files	Coverage Δ
x/evm/keeper/evm.go	63.30% <50.00%> (ø)
x/evm/client/wasm/query.go	31.03% <35.89%> (ø)

... and 3 files with indirect coverage changes

[philipsu522]

can we add a unit test for end to end lifecycle of creating minting burning revoking...etc of an nft? could be a start task for someone else too

[codchen]

@philipsu522 yeah that'd be quite a large test though (needs to instantiate an EVM contract, send EVM txs to mint tokens, instantiate a CW contract, send CW txs) so I'd include it in a dedicated PR