Standardize text files on UTF-8 without BOM

[angularsen]

Summary

• Set the repository-wide EditorConfig charset to UTF-8 without BOM.
• Remove the existing UTF-8 BOM from all 536 tracked files that contained one.
• Keep file contents and line endings otherwise unchanged.

Motivation

UTF-8 has no byte-order ambiguity, so its BOM only serves as an encoding signature. Unicode permits but does not require it, and W3C recommends avoiding it unless a compatibility requirement exists because it can interfere with tools or formats that expect content at byte zero.

This also aligns authored files with the explicit UTF-8-without-BOM behavior recently adopted by CodeGen and prevents future encoding-only review noise.

References:

• https://www.unicode.org/versions/Unicode17.0.0/core-spec/chapter-2/
• https://www.w3.org/International/questions/qa-byte-order-mark.en.php

Impact

This is an encoding-only normalization. No source, project, resource, documentation, or unit-definition content changes.

Validation

• Verified all 537 changed-file diffs: 536 are BOM-only removals and one is the EditorConfig policy change.
• Scanned all tracked files and found zero remaining UTF-8 BOMs.
• generate-code.bat
• dotnet restore UnitsNet.slnx
• dotnet build UnitsNet.slnx --no-restore — succeeded with 18 existing obsolete-API warnings and 0 errors.
• git diff --check

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98%. Comparing base (46e730b) to head (9af9528).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@          Coverage Diff           @@
##           master   #1723   +/-   ##
======================================
  Coverage      98%     98%           
======================================
  Files         514     514           
  Lines       24141   24141           
======================================
  Hits        23748   23748           
  Misses        393     393           

Flag	Coverage Δ
net48	97% <ø> (ø)

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