[ADQL] Add position on all objects generated by the ADQLParser.

src/adql/db/DBChecker.java

src/adql/db/STCS.java

src/adql/db/exception/UnresolvedFunctionException.java

src/adql/db/exception/UnresolvedIdentifiersException.java

src/adql/db/exception/UnresolvedJoinException.java

src/adql/parser/ADQLParser.java

src/adql/parser/ADQLQueryFactory.java

src/adql/parser/adqlGrammar.jj

src/adql/query/ADQLList.java

src/adql/query/ADQLObject.java

src/adql/query/ADQLQuery.java

src/adql/query/SelectAllColumns.java

src/adql/query/SelectItem.java

src/adql/query/TextPosition.java

src/adql/query/constraint/Between.java

src/adql/query/constraint/Comparison.java

src/adql/query/constraint/Exists.java

src/adql/query/constraint/In.java

src/adql/query/constraint/IsNull.java

src/adql/query/constraint/NotConstraint.java