add resp3 protocol part 2(double and big number)

[chyroc]

Pull Request for issue

#76

Description

• double
• big number

Testing Instructions

Excepted Behavior

Actual Behavior

Additional Comments

[codecov]

Codecov Report

Merging #79 into master will increase coverage by 0.16%.
The diff coverage is 76.92%.

@@            Coverage Diff             @@
##           master      #79      +/-   ##
==========================================
+ Coverage      72%   72.16%   +0.16%     
==========================================
  Files          11       11              
  Lines         750      776      +26     
==========================================
+ Hits          540      560      +20     
- Misses        191      195       +4     
- Partials       19       21       +2

Impacted Files	Coverage Δ
internal/protcl/errors.go	17.64% <66.66%> (+10.5%)	⬆️
internal/protcl/resp3.go	74.56% <80%> (+1.15%)	⬆️

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[kasvith]

tnx @chyroc