Improve `setVideoEncoderConfigurationOptions` to return Arrays

[bl0ggy]

I have a HIK Vision camera that returns only one mpeg4ProfileSupported, which is converted to a string instead of an Array by the xml parser

[coveralls]

Coverage decreased (-0.6%) to 87.339% when pulling c7964772ed191dc34cc019642d89e4e9286bb2bb on bl0ggy:improve_getVideoEncoderConfigurationOptions into f8ee914a9f5a8cab0acdb70f4efb0e4d0f56836f on agsh:master.