Todo

Classes summary

bkap_cart	Remove unnecessary global variable $wpdb add description where $wpdb has been used and remove if needed

bkap_admin_bookings	`create_bookings_1()`	Change to function name as per its functionality
bkap_admin_bookings	`create_bookings_2()`	Change to function name as per its functionality
woocommerce_booking	`bkap_meta_box_save1()`	Change the function name to meaningful
woocommerce_booking	`bkap_vertical_my_enqueue_scripts_css()`	replace get_option with the function declared above to fetch version number

`bkap_delete_tables`	Simplify this code by creating array of table and do foreach to remove tables
`bkap_get_booked_checkout`	The same function is written bkap_get_booked. check why it is saperatly written.