Added resp package for encoding and decoding resp messages.

Created encoding functions for the following commands: ping, set, setnx, get, mget, incr, incrby, incrbyfloat.
Created utils packages for shared utility functions.

serialization/decode.go

@@ -1 +1,32 @@
 package serialization
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+
+	"github.com/tidwall/resp"
+)
+
+func Decode(raw string) {
+	rd := resp.NewReader(bytes.NewBufferString(raw))
+
+	for {
+		v, _, err := rd.ReadValue()
+
+		if err == io.EOF {
+			break
+		}
+
+		if err != nil {
+			fmt.Println(err)
+		}
+
+		fmt.Println(v)
+		if v.Type().String() == "Array" {
+			for _, elem := range v.Array() {
+				fmt.Printf("%s: %v\n", elem.Type().String(), elem)
+			}
+		}
+	}
+}