add bash version of release script

Author: kthrose

buildReleaseNuGetPackages.sh

@@ -0,0 +1,13 @@
+echo "Start building Electron.NET dev stack..."
+echo "Restore & Build API"
+cd ElectronNet.API
+dotnet restore
+dotnet build --configuration Release --force /property:Version=5.22.12
+dotnet pack /p:Version=5.22.12 --configuration Release --force --output "%~dp0artifacts"
+cd ..
+echo "Restore & Build CLI"
+cd ElectronNet.CLI
+dotnet restore
+dotnet build --configuration Release --force /property:Version=5.22.12
+dotnet pack /p:Version=5.22.12 --configuration Release --force --output "%~dp0artifacts"
+cd ..