adding customer abbr field
adding customer abbr field

indictranstech/vestasi-erpnext,indictranstech/vestasi-erpnext,suyashphadtare/vestasi-erp-jan-end,indictranstech/vestasi-erpnext,suyashphadtare/vestasi-erp-jan-end,indictranstech/vestasi-erpnext,suyashphadtare/vestasi-erp-jan-end,suyashphadtare/vestasi-erp-jan-end