Add 2 new functions: group_sheets and insert_page_break

[tanz3]

PR Details

Add 2 new functions: group_sheets and insert_page_break

Description

Add 2 new functions: group_sheets and insert_page_break

Related Issue

Motivation and Context

Add 2 new functions: group_sheets and insert_page_break

How Has This Been Tested

Added new unit tests

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]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (beb3d1f) to head (cf5fbb0).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main       #12   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            4         4           
  Lines         1889      1920   +31     
=========================================
+ Hits          1889      1920   +31     

Flag	Coverage Δ
unittests	100.00% <100.00%> (ø)

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[xuri]

LGTM, thanks for your contribution.