SES-1417 : Manage org.json dependency so it can be reused

Also move the mockito dependency up to the parent pom
SES-1417 : Add org.json dependency on sparqljson module
SES-1417 : Initial, empty, SPARQLJSONParserBase class
SES-1417 : More work on SPARQLJSONParserBase
SES-1417 : More progress on SPARQLJSONParserBase
SES-1417 : Fix javadoc in SPARQLBooleanXMLParserFactory
SES-1417 : Initial complete version of SPARQLJSONParserBase
SES-1417 : Add SPARQLBooleanJSONParser as wrapper for
SPARQLJSONParserBase
SES-1417 : Add SPARQLResultsJSONParser as wrapper for
SPARQLJSONParserBase
SES-1417 : Reenable SPARQL JSON compliance tests
SES-1417 : Patch
QueryResultIO.parse(InputStream,BooleanQueryResultFormat)
SES-1417 : Add handlers if they are not setup in legacy methods
SES-1417 : Fix more bugs with SPARQL JSON parser
SES-1417 : Remove unused imports
SES-1417 : Fix bug in SPARQLResultsJSONWriter when there were no results
SES-1417 : Fix bug in SPARQLResultsJSONParserBase when datatype missing
SES-1417 : Integrate JSON Writer code into SPARQLJSONWriterBase
SES-1417 : Integrate XML Writer code into SPARQLXMLWriterBase