Some add of great importance today

A: .data.impl.HcbAcntRW. Add a class in charge of reading and writing
account and deposit information of HCB. What should be noticed is that
HCB also use this class to read and write some deposits which can be
changed by users (e.g. renting deposits per day, which is used to
multiply grade of the book to calculate total deposit of renting in a
specific duration)

M: .commons.* add some new status and code representing specific
meanings
M: .service.impl.TransMgmtServiceImpl complete but not test:
bookRenting. Reserving a problem: what if the member return a book after
the deadline of returning?

Note: I didn't test any of the new modifications and add-ons, so be
cautious on the following coding.

Signed-off-by: lrcry <lrcry@vip.qq.com>