WIP: remove the old database abstraction layer

remove such classes:
- DbBase
- DbConn
- DbTextStream
- Db

while here:
- remove: TextStream, SLog, TexTextStream

winixd/functions/functions.h

@@ -5,7 +5,7 @@
  */
 
 /* 
- * Copyright (c) 2010-2022, Tomasz Sowa
+ * Copyright (c) 2010-2024, Tomasz Sowa
  * All rights reserved.
  * 
  * Redistribution and use in source and binary forms, with or without
@@ -169,7 +169,6 @@ public:
 
 	//void SetConfig(Config * pconfig);
 	void SetCur(Cur * pcur);
-	void SetDb(Db * pdb);
 	void SetSystem(System * psystem);
 	void SetTemplates(Templates * ptemplates);
 	//void SetSynchro(Synchro * psynchro);
@@ -184,7 +183,7 @@ public:
 
 	void CheckGetPostTimes(time_t difference = 10);
 
-	bool CheckAbuse(SLog * slog = nullptr);
+	bool CheckAbuse();
 
 	// !! dac lepsze nazwy
 	void ReadItemFilterHtml(const std::wstring & html, std::wstring & html_filtered);
@@ -206,7 +205,6 @@ private:
 
 	//Config  * config;
 	Cur     * cur;
-	Db      * db;
 	System  * system;
 	//Synchro * synchro;
 	Templates * templates;