port the numba integration prototype from Enterprise to OSS, fixes fe…

…ature-523 (#638)

* port the numba integration prototype from Enterprise to OSS, WIP, fixes feature-523

* changes to make python unittest happy

* restore important javadoc comments to the <type>Chunk.java files, fixes #523

DB-test/src/test/java/io/deephaven/db/v2/select/TestConditionFilter.java

@@ -280,10 +280,10 @@ public void testComparison() {
 
     @Test
     public void testLoadNumpyTwice() {
-        Assert.assertNotNull(PyModule.importModule("numba"));
+        Assert.assertNotNull(PyModule.importModule("deephaven/numba"));
         Assert.assertNotNull(PyModule.importModule("numpy"));
         Assert.assertNotNull(PyModule.importModule("deephaven.lang.vectorize_simple"));
-        Assert.assertNotNull(PyModule.importModule("numba"));
+        Assert.assertNotNull(PyModule.importModule("deephaven/numba"));
         Assert.assertNotNull(PyModule.importModule("numpy"));
         Assert.assertNotNull(PyModule.importModule("deephaven.lang.vectorize_simple"));
     }
@@ -440,10 +440,4 @@ private Index initCheck(String expression, FormulaParserConfiguration parser) {
         return conditionFilter.filter(testDataTable.getIndex().clone(), testDataTable.getIndex(), testDataTable, false);
     }
 
-    private Index initV3PythonCheck(String expression) {
-        PythonVectorFilter conditionFilter = new PythonVectorFilter(expression.replaceAll(" = ", " == "));
-        conditionFilter.init(testDataTable.getDefinition());
-        return conditionFilter.filter(testDataTable.getIndex().clone(), testDataTable.getIndex(), testDataTable, false);
-    }
-
 }