New function: SearchSheet(), relate issue #277

[peng]

PR Details

Description

Related Issue

Motivation and Context

How Has This Been Tested

Types of changes

• Docs change / refactoring / dependency upgrade
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[codecov-io]

Codecov Report

Merging #278 into master will decrease coverage by 0.79%.
The diff coverage is 0%.

@@           Coverage Diff           @@
##           master   #278     +/-   ##
=======================================
- Coverage   98.79%    98%   -0.8%     
=======================================
  Files          18     18             
  Lines        3823   3854     +31     
=======================================
  Hits         3777   3777             
- Misses         28     59     +31     
  Partials       18     18

Impacted Files	Coverage Δ
sheet.go	89.8% <0%> (-8.65%)	⬇️

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[xuri]

@peng great work. I'll merge this is as is.