init c# backend

backend/.gitignore

@@ -0,0 +1,50 @@
+# Build results
+bin/
+obj/
+[Dd]ebug/
+[Dd]ebugPublic/
+[Rr]elease/
+[Rr]eleases/
+x64/
+x86/
+[Ww][Ii][Nn]32/
+[Aa][Rr][Mm]/
+[Aa][Rr][Mm]64/
+
+# Visual Studio
+.vs/
+.vscode/
+*.sln.iml
+*.sln.docstates
+*.user
+*.userprefs
+*.userosscache
+*.sln.user
+
+# ReSharper
+.idea/
+*.resharper
+*.resharper.user
+*.DotSettings.user
+_ReSharper*/
+*.[Rr]e[Ss]harper
+*.sln.iml
+
+# Local environment
+.env
+.env.local
+appsettings.Development.json
+
+# NuGet
+.nuget/
+*.nupkg
+*.snupkg
+packages/
+
+# Rider
+.idea/
+*.sln.iml
+*.log
+
+# macOS
+.DS_Store