Added consistency checking while opening an existing TAP_SCHEMA

.../src/main/java/it/inaf/ia2/tsm/api/ConsistencyChecks.java

...nagerAPI/src/main/java/it/inaf/ia2/tsm/api/DaoColumn.java

...nagerAPI/src/main/java/it/inaf/ia2/tsm/api/DaoSchema.java

...anagerAPI/src/main/java/it/inaf/ia2/tsm/api/DaoTable.java

...I/src/main/java/it/inaf/ia2/tsm/api/EditableProperty.java

...API/src/main/java/it/inaf/ia2/tsm/api/EntityProperty.java

...rc/main/java/it/inaf/ia2/tsm/api/FixedEntityProperty.java

...rAPI/src/main/java/it/inaf/ia2/tsm/api/KeyColumnImpl.java

...ManagerAPI/src/main/java/it/inaf/ia2/tsm/api/KeyImpl.java

...agerAPI/src/main/java/it/inaf/ia2/tsm/api/SchemaImpl.java

...src/main/java/it/inaf/ia2/tsm/api/SelectQueryBuilder.java

...ManagerAPI/src/main/java/it/inaf/ia2/tsm/api/TSMUtil.java

...nagerAPI/src/main/java/it/inaf/ia2/tsm/api/TableImpl.java

...rc/main/java/it/inaf/ia2/tsm/api/TapSchemaEntityImpl.java

...rAPI/src/main/java/it/inaf/ia2/tsm/api/TapSchemaImpl.java

...src/main/java/it/inaf/ia2/tsm/api/UpdateQueryBuilder.java

...src/main/java/it/inaf/ia2/tsm/api/contract/KeyColumn.java

...src/main/java/it/inaf/ia2/tsm/api/contract/TapSchema.java

...in/java/it/inaf/ia2/tsm/api/contract/TapSchemaEntity.java

...ManagerAPI/src/test/java/it/inaf/ia2/tsm/api/TestAll.java