XMLParserConfiguration defined json arrays option

[Zetmas]

• Added a member variable named Set<String> forceList to XMLParserConfiguration with corresponding constructor/getter/setter
• After configuring forceList in XMLParserConfiguration, XML.toJSONObject will now set the corresponding values as arrays, regardless of their number of occurrences
• If the returning value is originally "", it will be replaced by []

[johnjaylward]

looks decent enough to me. Thanks

[stleary]

What problem does this code solve?
Enhancement for unconditional parsing of XML elements to array

Risks
Low

Changes to the API?
Added a new XML config option

Will this require a new release?
No

Should the documentation be updated?
Yes (Do we even have an XMLConfiguration topic?)

Does it break the unit tests?
No

Was any code refactored in this commit?
No

Review status
APPROVED

[stleary]

Starting a 7 day comment window (won't be able to complete a code review rght away)