Detect entrypoint automatically

scripts/Windows/Scripts/Entrypoints.ps1

@@ -0,0 +1,14 @@
+function Get-Entrypoint() {
+    $stackTrace = Get-PSCallStack
+    $call = $stackTrace[$stackTrace.Count - 1];
+
+    if ($null -ne $call.ScriptName) {
+        return $call.ScriptName;
+    } else {
+        $call = $CallStack[$CallStack.Count - 2];
+        return $call.ScriptName;
+    }
+
+
+    throw "No PowerShell entry point script could be found.";
+}