Integrate ibctransfer

[dadamu]

Description

• Integrate ibc transfer module
• closes Enable IBC and IBC transfer #382

Checklist

• Targeted PR against correct branch.
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
• Wrote unit tests.
• Wrote integration tests (simulation & CLI).
• Updated the documentation.
• Added an entry to the CHANGELOG.md file.
• Re-reviewed Files changed in the Github PR explorer.

[codecov]

Codecov Report

Merging #383 (9699b67) into master (eb064c8) will increase coverage by 0.19%.
The diff coverage is 97.43%.

@@            Coverage Diff             @@
##           master     #383      +/-   ##
==========================================
+ Coverage   81.69%   81.88%   +0.19%     
==========================================
  Files          99       99              
  Lines        3797     3826      +29     
==========================================
+ Hits         3102     3133      +31     
+ Misses        579      577       -2     
  Partials      116      116              

Impacted Files	Coverage Δ
app/app.go	86.64% <97.43%> (+2.52%)	⬆️

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[leobragaz]

LGTM 👍