chore: Added default files to solution

Extensions.Data.sln

@@ -3,6 +3,26 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.0.31903.59
 MinimumVisualStudioVersion = 10.0.40219.1
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{7B526BE2-48B3-4D0B-BCB3-371A7E51C55C}"
+	ProjectSection(SolutionItems) = preProject
+		.commitlintrc = .commitlintrc
+		.editorconfig = .editorconfig
+		.filenesting.json = .filenesting.json
+		.gitattributes = .gitattributes
+		.gitignore = .gitignore
+		.gitmodules = .gitmodules
+		Directory.Build.props = Directory.Build.props
+		Directory.Build.targets = Directory.Build.targets
+		Directory.Packages.props = Directory.Packages.props
+		Directory.Solution.props = Directory.Solution.props
+		GitVersion.yml = GitVersion.yml
+		LICENSE = LICENSE
+		new-project.ps1 = new-project.ps1
+		nuget.config = nuget.config
+		README.md = README.md
+		update-solution.ps1 = update-solution.ps1
+	EndProjectSection
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU