Stream writer improvements

[harrison3000]

PR Details

This PR adds miscellaneous improvements to the stream writer API

Description

• Adds SetPanes
• Adds AutoFilter
• Allows calling SetColWidth after rows have already been written
• Adds a new type SharedString to use shared strings on stream mode on a opt-in manner

Related Issue

#1047

Motivation and Context

These changes make the stream API more flexible and less restricted

How Has This Been Tested

For now I only tested generating large sheets with real world data I also looked at the xml and compared to another xml generated on normal mode Automated tests on the way

Types of changes

• [x] Docs change / refactoring / dependency upgrade
• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] 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.
• [x] 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.

[harrison3000]

please review this PR, I have nothing more to add, it just need the finishing touches

[codecov-commenter]

Codecov Report

Merging #1123 (72db604) into master (2f5704b) will increase coverage by 0.00%. The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master    #1123   +/-   ##
=======================================
  Coverage   98.44%   98.44%           
=======================================
  Files          31       31           
  Lines       23459    23469   +10     
=======================================
+ Hits        23095    23105   +10     
  Misses        242      242           
  Partials      122      122           

Flag	Coverage Δ
unittests	98.44% <100.00%> (+<0.01%)	:arrow_up:

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
errors.go	100.00% <ø> (ø)
sheet.go	100.00% <100.00%> (ø)
stream.go	90.23% <100.00%> (+0.11%)	:arrow_up:

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