Add RFC for DeploymentTrace feature

[khanhtc1202]

What this PR does:

Why we need it:

This will be used as a note for DeploymentTrace feature design decision

Which issue(s) this PR fixes:

Part of #5444

Does this PR introduce a user-facing change?:

• How are users affected by this change:
• Is this breaking change:
• How to migrate (if breaking change):

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 25.66%. Comparing base (57c48c1) to head (ee8331a).
Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5677      +/-   ##
==========================================
- Coverage   25.66%   25.66%   -0.01%     
==========================================
  Files         474      476       +2     
  Lines       50905    50894      -11     
==========================================
- Hits        13066    13063       -3     
+ Misses      36848    36841       -7     
+ Partials      991      990       -1     

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[t-kikuc]

LGTM
i left some nits

[Warashi]

LGTM