other: add additional clamping functions on numeric types

[ClementTsang]

Description

A description of the change, what it does, and why it was made. If relevant (such as any change that modifies the UI), please provide screenshots of the changes:

Adds clamp_lower and clamp_upper util functions for numeric types.

Issue

If applicable, what issue does this address?

Closes: #

Testing

If relevant, please state how this was tested. All changes must be tested to work:

If this is a code change, please also indicate which platforms were tested:

• Windows
• macOS
• Linux

Checklist

If relevant, ensure the following have been met:

• Areas your change affects have been linted using rustfmt (cargo fmt)
• The change has been tested and doesn't appear to cause any unintended breakage
• Documentation has been added/updated if needed (README.md, help menu, doc pages, etc.)
• The pull request passes the provided CI pipeline
• There are no merge conflicts
• If relevant, new tests were added (don't worry too much about coverage)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (7c14aa2) 31.82% compared to head (f2c4520) 31.94%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1324      +/-   ##
==========================================
+ Coverage   31.82%   31.94%   +0.11%     
==========================================
  Files          98       98              
  Lines       16674    16702      +28     
==========================================
+ Hits         5307     5335      +28     
  Misses      11367    11367              

Flag	Coverage Δ
macos-12	33.68% <100.00%> (+0.12%)	⬆️
ubuntu-latest	33.51% <100.00%> (+0.11%)	⬆️
windows-2019	33.77% <100.00%> (+0.12%)	⬆️

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