Added easyMock library
Fixed unused import in IMember
Added Book class and helper util skeleton
added TestBook tests for constructor and getters
Added .metadata/ to gitIgnore
Implemented book constructor
Added getters for main properties
implemented testGetState
implemented BookState property and getstate
implemented testLoseNotOnLoan, added testLoseOnLoan
implemented Book.lose()
Implemented testBorrow, testReturn, testGetLoan scenarios
Implemented Book.borrow and Book.getLoan
implemented returnBook
corrected testLoseOnLoan (needed to borrow book first)
Implemented test book.repair
Implemented book.repair
Implemented test book.dispose
Implemented book.dispose
Removed unused variable warning