Problem: missing validation on nft-transfer message fields

[yihuang]

Solution:

• add some validation in check-tx

👮🏻👮🏻👮🏻 !!!! REFERENCE THE PROBLEM YOUR ARE SOLVING IN THE PR TITLE AND DESCRIBE YOUR SOLUTION HERE !!!! DO NOT FORGET !!!! 👮🏻👮🏻👮🏻

PR Checklist:

• Have you read the CONTRIBUTING.md?
• Does your PR follow the C4 patch requirements?
• Have you rebased your work on top of the latest master?
• Have you checked your code compiles? (make)
• Have you included tests for any non-trivial functionality?
• Have you checked your code passes the unit tests? (make test)
• Have you checked your code formatting is correct? (go fmt)
• Have you checked your basic code style is fine? (golangci-lint run)
• If you added any dependencies, have you checked they do not contain any known vulnerabilities? (go list -json -m all | nancy sleuth)
• If your changes affect the client infrastructure, have you run the integration test?
• If your changes affect public APIs, does your PR follow the C4 evolution of public contracts?
• If your code changes public APIs, have you incremented the crate version numbers and documented your changes in the CHANGELOG.md?
• If you are contributing for the first time, please read the agreement in CONTRIBUTING.md now and add a comment to this pull request stating that your PR is in accordance with the Developer's Certificate of Origin.

Thank you for your code, it's appreciated! :)

[codecov]

Codecov Report

Attention: 9 lines in your changes are missing coverage. Please review.

Comparison is base (d71c53c) 33.05% compared to head (e5369f8) 33.08%.

Files	Patch %	Lines
app/ante.go	66.66%	6 Missing and 3 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1019      +/-   ##
==========================================
+ Coverage   33.05%   33.08%   +0.03%     
==========================================
  Files         126      126              
  Lines       20014    20041      +27     
==========================================
+ Hits         6616     6631      +15     
- Misses      12339    12349      +10     
- Partials     1059     1061       +2     

Flag	Coverage Δ
integration_tests	20.71% <51.85%> (+0.02%)	⬆️
integration_tests_byzantine	9.66% <29.62%> (+0.01%)	⬆️
integration_tests_gov	10.03% <51.85%> (+0.05%)	⬆️
integration_tests_grpc	10.01% <51.85%> (+0.05%)	⬆️
integration_tests_ibc	24.81% <66.66%> (+0.04%)	⬆️
integration_tests_ledger	9.90% <51.85%> (+0.05%)	⬆️
integration_tests_slow	9.90% <51.85%> (+0.05%)	⬆️
integration_tests_solomachine	9.69% <51.85%> (+0.05%)	⬆️
integration_tests_upgrade	10.01% <51.85%> (+0.05%)	⬆️
unit_tests	10.99% <11.11%> (+<0.01%)	⬆️

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