OPENDJ-1368 Remove AttributeValue

Code review: Matthew Swift


Removing the last calls to AttributeValue.getNormalizedValue().


SortValues.java:
Added types field + getter.

SortValuesSet.java:
In add(), remove(), binarySearch() and attributeValuesToDatabase(), passed in AttributeType array as a parameter.

VLVIndex.java:
In getSortValuesSet(), containsValues() and encodeKey(), passed in AttributeType array as a parameter.
Added getSortTypes() and encodeKey().

VLVKeyComparator.java:
In compare(), passed in AttributeType array as a parameter.

VerifyJob.java, TestVerifyJob.java, TestVLVIndex.java:
Consequence of the changes above.

TestVLVIndex.java:
Extracted method getSortValuesSet().

StringPrepProfileTestCase.java:
Removed unused import.