New template structure
Create a structure of inheritance patterns.

Created a layout template for the two types of pages: the single-and two-column page.
Add template files for the index page and admin edit page based on the structure of inheritance patterns.
Changes some include paths.
Add order_id field for orders table.
Add templates for the major components of pages.

All the main page is now used pure template name instead of the total for all page.tpl
Fixes bug with editing tables.

An error occurred while editing tables that contain the fields with foreign keys.
Fixed a bug of selective forms of editing tables.
Removed display id fields.