Make code compliant with editorconfig and cpplint

[ptahmose]

Description

• added an .editorconfig file
• formatted all code with those settings

Fixes #31

About every file has been touched in the PR, so it is probably impossible to review it. However - the hope is that this is the last time that we have a change like that (i.e. a massive PR due to formatting changes).

Type of change

• 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 not work as expected)
• This change requires a documentation update

How Has This Been Tested?

built locally and ran tests

Checklist:

• I followed the Contributing Guidelines.
• I did a self-review.
• I commented my code, particularly in hard-to-understand areas.
• I updated the documentation.
• I updated the version of libCZI following Versioning of libCZI depending on the type of change
  • Bug fix -> PATCH
  • New feature -> MINOR
  • Breaking change -> MAJOR
• I have added tests that prove my fix is effective or that my feature works.
• New and existing unit tests pass locally with my changes.

[codecov]

Codecov Report

Merging #32 (7c9881f) into main (078cf06) will decrease coverage by 0.01%.
The diff coverage is 53.13%.

@@            Coverage Diff             @@
##             main      #32      +/-   ##
==========================================
- Coverage   47.27%   47.27%   -0.01%     
==========================================
  Files          77       77              
  Lines       15749    15756       +7     
==========================================
+ Hits         7445     7448       +3     
- Misses       8304     8308       +4     

Flag	Coverage Δ
windows-latest	47.27% <53.13%> (-0.01%)	⬇️

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

Impacted Files	Coverage Δ
Src/libCZI/CziMetadataDocumentInfo2.cpp	50.20% <ø> (ø)
Src/libCZI/CziReaderWriter.cpp	79.88% <ø> (ø)
Src/libCZI/CziStructs.cpp	85.71% <ø> (ø)
Src/libCZI/CziSubBlockDirectory.cpp	79.88% <ø> (ø)
Src/libCZI/CziSubBlockDirectory.h	100.00% <ø> (ø)
Src/libCZI/CziUtils.cpp	62.10% <ø> (ø)
Src/libCZI/CziUtils.h	80.00% <ø> (ø)
Src/libCZI/CziWriter.cpp	84.82% <ø> (ø)
Src/libCZI/CziWriter.h	65.47% <ø> (ø)
Src/libCZI/DimCoordinate.cpp	66.93% <ø> (ø)
... and 91 more

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[FelixS90]

I checked the content with "Hide Whitespace", which left over 8 files to review.

As discussed offline, I will try to bring this into a GitHub Action to avoid regressions in the future.

Options:

1. Mega-Linter using editorconfig-checker under the hood
2. EditorConfig-Action

[ptahmose]

I checked the content with "Hide Whitespace", which left over 8 files to review.

Thanks for this tip, wasn't aware of this feature. Nice!

[FelixS90]

As with the first review, I checked all changed files that do not only have white space changes.

I did not check Cpplint related changes for correctness - trusting cpplint itself and tests.

Feel free to resolve all remaining conversations if you are OK with the changes I introduced on top of this PR.