1.create a table named "company master"
structure :	ID ,company_name,registration_no,broker_customer_code,broker_business_code,cto,shipping_agent
2. create a table : user_master
structure : 	user_id ,username,password,company_code.
3. regime_master
structure : 	id,code,type
4. Port_master
structure :  	id,code,description
5. transport_mode
structure : 	id,type
6. declaration_type 
structure :	id,declaration_type,regime_type
7. declaration_purpose
structure :	 