WIP: remove the old database abstraction layer

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

while here:
- remove: TextStream, SLog, TexTextStream

winixd/core/system.cpp

@@ -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
@@ -58,12 +58,6 @@ void System::SetCur(Cur * pcur)
 //}
 
 
-void System::SetDb(Db * pdb)
-{
-	db = pdb;
-}
-
-
 //void System::SetSynchro(Synchro * psynchro)
 //{
 //	synchro = psynchro;
@@ -129,23 +123,21 @@ bool System::Init()
 	//thread_manager.SetSynchro(synchro);
 	thread_manager.Init();
 
-	dirs.SetDb(db);
 	dirs.SetCur(cur); // only one method is using cur, can be passed as a parameter to the method
 	dirs.SetNotify(&notify);
 	dirs.ReadDirs();
 
 	mounts.SkipStaticDirs(config->dont_use_static_dirs);
 	mounts.SetDirs(&dirs);
-	mounts.SetDb(db);
 	mounts.CreateMounts();
 	mounts.ReadMounts();
 
 //	users.SetCur(cur);
 //	users.SetSessionManager(session_manager);
 	users.set_connector(model_connector);
-	users.ReadUsers(db);
+	users.ReadUsers();
 
-	groups.ReadGroups(db); // !! chwilowe przekazanie argumentu, db bedzie zmienione
+	groups.ReadGroups();
 
 	rebus.SetCur(cur);
 	rebus.Init();
@@ -160,7 +152,6 @@ bool System::Init()
 	if( !notify.Init() )
 		return false;
 
-	image.SetDb(db);
 	image.SetConfig(config);
 	image.SetSystem(this);