Update extensions integration to check asset FT rules before calling the extensions.

[dzmitryhil]

Description

Update extensions integration to check asset FT rules before calling the extensions.

Reviewers checklist:

• Try to write more meaningful comments with clear actions to be taken.
• Nit-picking should be unblocking. Focus on core issues.

Authors checklist

• Provide a concise and meaningful description
• Review the code yourself first, before making the PR.
• Annotate your PR in places that require explanation.
• Think and try to split the PR to smaller PR if it is big.

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This change is 

[codecov]

Codecov Report

Attention: Patch coverage is 81.96721% with 11 lines in your changes missing coverage. Please review.

Project coverage is 62.42%. Comparing base (d4d888b) to head (616a122).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
x/asset/ft/keeper/before_send.go	60.00%	6 Missing and 4 partials ⚠️
x/asset/ft/keeper/keeper_dex.go	95.83%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1033      +/-   ##
==========================================
- Coverage   62.43%   62.42%   -0.01%     
==========================================
  Files         159      159              
  Lines       18542    18535       -7     
==========================================
- Hits        11577    11571       -6     
+ Misses       5852     5851       -1     
  Partials     1113     1113              

Flag	Coverage Δ
coreum	57.06% <81.96%> (-0.02%)	⬇️
coreum-integration-tests-modules	52.55% <72.13%> (?)

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[masihyeganeh]

Reviewed 12 of 12 files at r1, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @miladz68 and @ysv)

[miladz68]

Reviewed 12 of 12 files at r1, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @ysv)