Support Go execd plugins with shim (#7283)

plugins/inputs/execd/shim/goshim_windows.go

@@ -0,0 +1,13 @@
+// +build windows
+
+package shim
+
+import (
+	"os"
+	"os/signal"
+	"syscall"
+)
+
+func listenForCollectMetricsSignals(collectMetricsPrompt chan os.Signal) {
+	signal.Notify(collectMetricsPrompt, syscall.SIGHUP)
+}