added lucene & solr libraries as well as initial tibetan language processing code + new build file

source/org/thdl/lucene/NumberPadderFactory.java

@@ -0,0 +1,10 @@
+package org.thdl.lucene;
+
+import org.apache.lucene.analysis.*;
+import org.apache.solr.analysis.*;
+
+public class NumberPadderFactory extends BaseTokenFilterFactory {
+    public TokenStream create(TokenStream input) {
+        return new NumberPadder(input);
+    }
+}