Added simple-port-scanner exercise!

simple-port-scanner/go.mod

@@ -0,0 +1,3 @@
+module simple-port-scanner
+
+go 1.23.2

simple-port-scanner/main.go

@@ -0,0 +1,35 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"net"
+	"os"
+)
+
+var (
+	IP       string
+	Port     string
+	ScanType = "tcp"
+)
+
+func main() {
+	if len(os.Args) != 3 {
+		fmt.Printf("Insufficient arguments:\n./simple-port-scanner $IP $PORT")
+		os.Exit(0)
+	}
+	IP = os.Args[1]
+	Port = os.Args[2]
+	fmt.Printf("Scanning %v:%v...\n", IP, Port)
+
+	conn, err := net.Dial(ScanType, IP+":"+Port)
+	if err != nil {
+		log.Fatalf("Fatal error occurred while scanning port: %v\n", err)
+	}
+	defer conn.Close()
+
+}
+
+func handleConn(conn net.Conn) {
+
+}