Implement the assignment operator for the Value class

lib/base/value-operators.cpp

@@ -99,6 +99,12 @@ std::istream& icinga::operator>>(std::istream& stream, Value& value)
 	return stream;
 }
 
+Value& Value::operator=(const Value& other)
+{
+	m_Value = other.m_Value;
+	return *this;
+}
+
 bool Value::operator==(bool rhs) const
 {
 	return *this == Value(rhs);

lib/base/value.hpp

@@ -111,6 +111,8 @@ public:
 	operator double(void) const;
 	operator String(void) const;
 
+	Value& operator=(const Value& other);
+
 	bool operator==(bool rhs) const;
 	bool operator!=(bool rhs) const;