Added UCD manual insertion and its validation

...af/oats/ia2/tapschemamanager/businesslayer/SearchUCD.java

...inaf/oats/ia2/tapschemamanager/businesslayer/UCDInfo.java

...2/tapschemamanager/businesslayer/UCDServiceException.java

.../tapschemamanager/webapp/CustomPartialResponseWriter.java

...naf/oats/ia2/tapschemamanager/webapp/SearchUCDDialog.java

...ats/ia2/tapschemamanager/webapp/TapSchemaEditingBean.java

TapSchemaManager/src/main/webapp/WEB-INF/web.xml

TapSchemaManager/src/main/webapp/expired.xhtml

...emaManager/src/main/webapp/resources/js/edit-tapschema.js

TapSchemaManager/src/main/webapp/tapSchemaEditing.xhtml

...a/it/inaf/oats/ia2/tapschemamanager/datalayer/DLUtil.java

...naf/oats/ia2/tapschemamanager/datalayer/DataProvider.java

...inaf/oats/ia2/tapschemamanager/datalayer/TableEntity.java

...oats/ia2/tapschemamanager/datalayer/TapSchemaHandler.java