Add the Tpda3 system tables to the Fb, Pg and SQLite schemas.

The Fb and Pg schemas are not tested! :)
The reports* tables are used by the Reports screen and the Repman dialog;
The templates* tables are used by the Templates and TemplDet screens
and the TTGen dialog;
Add tree in config for rep and tex dirs; update TM toolbar.
Improve regexp to retrieve variables from TT file; needs rewrite.
Fix bug. :(
Check for other data before save in Templates.pm.
Rename Guide to Manual; update manual.