Added simple release batchfile.

release.bat

@@ -0,0 +1,19 @@
+@echo off
+
+if [%1]==[] goto :help
+
+setlocal enableDelayedExpansion
+set /p "GH_TOKEN=" <GITHUB_TOKEN
+
+git tag -a %1 -m "Release %1."
+git push origin %1
+
+gh release %1 --notes-from-tag
+
+goto :done
+
+:help
+echo Usage %0 version_number
+goto :done
+
+:done