Lucene.Net.Util.TestUnicodeUtil::TestUTF8toUTF32(): Added additional tests for ICharSequence and char[] overloads, changed the original test to test string.
Lucene.Net.Util.TestUnicodeUtil::TestUTF8toUTF32(): Added additional tests for ICharSequence and char[] overloads, changed the original test to test string.

NightOwl888/lucenenet,apache/lucenenet,apache/lucenenet,NightOwl888/lucenenet,NightOwl888/lucenenet,NightOwl888/lucenenet,apache/lucenenet,apache/lucenenet