issue #17 create Tables.java & Hall.java

tables add to hall and testing
issue #18 connection tables to db
issue #18 hall connection to db
issue #18 hall/tables many-to-one doesn't work
issue #18 many to one tables hall don't work
Mapping simplified. The only error wehave is: failed to save the transient instance
before flushing
Mapping enhanced. we can write but can't read : failed to lazily
initialize a collection of role: com.siriusif.model.Hall.tables, no
session or session was closed
One to many mapping works fine
Removed unnecessary link table from one-to-many mapping
Merge branch 'issue_17_domain_model_hall_tables'
Merge branch 'master' of https://github.com/crc83/WebCash