NSClient: add {Set,Get}InfoKey() methods.

src/shared/NSClient.h

@@ -67,6 +67,11 @@ public:
 	It's the first method to be called after receiving the input variables from the client.*/
 	virtual void ServerInputFrame(void);
 
+	/** Set the value of an InfoKey. */
+	nonvirtual void SetInfoKey(string, string);
+	/** Get the string value of an InfoKey. */
+	nonvirtual string GetInfoKey(string);
+
 	/* overrides */
 	virtual void Save(float);
 	virtual void Restore(string,string);

src/shared/NSClient.qc

@@ -41,6 +41,19 @@ void
 NSClient::ServerInputFrame(void)
 {
 }
+
+void
+NSClient::SetInfoKey(string strKey, string strValue)
+{
+	forceinfokey(this, strKey, strValue);
+}
+
+string
+NSClient::GetInfoKey(string strKey)
+{
+	return infokey(this, strKey);
+}
+
 #endif
 
 void