- Prior to this change the `<meta ...>` generated had a name attribute. As an alternative we're using the `content` attribute in conjunction with the `name` attribute to ensure compliance.
#3449
- use consistent line endings on all platforms so that hashes and file versions match
- add another `.gitattribute` file
- move files to avoid required index recreation in all Linux repos
- Updated implementation to do a best guess at copying an attribute back into `TagHelperOutput.Attributes`.
- Updated existing functional and unit tests to account for maintained attribute order.
- Added a set of complex order based unit tests to validate `CopyHtmlAttribute` properly maintains order.
#2639