add operator<< for packets (#14)

Reviewed-on: #14
Co-authored-by: Persson-dev <sim16.prib@gmail.com>
Co-committed-by: Persson-dev <sim16.prib@gmail.com>

include/sp/protocol/Field.h

@@ -1,6 +1,5 @@
 #pragma once
 
-#include <sp/common/DataBuffer.h>
 #include <sp/common/Templates.h>
 
 namespace sp {
@@ -98,6 +97,19 @@ class Field {
 	StorageType m_Value;
 };
 
+template <typename T>
+class PrintableField {
+  public:
+	PrintableField(const T& a_Value) : m_Value(a_Value) {}
+
+	const T& GetValue() const {
+		return m_Value;
+	}
+
+  private:
+	const T& m_Value;
+};
+
 namespace details {
 
 template <typename... TFields>