WIP: remove the old database abstraction layer

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

while here:
- remove: TextStream, SLog, TexTextStream

winixd/plugins/ticket/templates.cpp

@@ -5,7 +5,7 @@
  */
 
 /* 
- * Copyright (c) 2008-2021, Tomasz Sowa
+ * Copyright (c) 2008-2024, Tomasz Sowa
  * All rights reserved.
  * 
  * Redistribution and use in source and binary forms, with or without
@@ -77,7 +77,7 @@ bool is_value;							// true if value for such a param was defined
 bool is_in_ticket_par;					// true if the value is defined in ticket.par_tab
 										// else the value can be defined in meta (or not at all)
 
-Ticket::TicketParam * ticket_par;		// if is_in_ticket_par is true
+TicketParam * ticket_par;				// if is_in_ticket_par is true
 pt::Space * value_meta;					// if is_in_ticket_par is false and if there is such a value in meta