Added get-time exercise

get-time/go.mod

@@ -0,0 +1,3 @@
+module get-time
+
+go 1.22.1

get-time/main.go

@@ -0,0 +1,11 @@
+package main
+
+import (
+	"fmt"
+	"time"
+)
+
+func main() {
+	t := time.Now()
+	fmt.Printf("%d-%02d-%02dT%02d:%02d:%02d\n", t.Year(), t.Month(), t.Day(), t.Hour(), t.Minute(), t.Second())
+}