[NO-ISSUE][GRAPHIX] Adding a pure-rewrite version of Graphix.

Details:
- Users can create and delete managed graphs w/ CREATE GRAPH and DROP
  GRAPH. These will raise an error if a user tries to drop one of their
  dependents (and vice-versa).
- Users can introduce a set of variable bindings before UNNEST and JOIN
  clauses using the MATCH clause, which will iterate over all "matched"
  graph patterns. The MATCH clause also includes a "LEFT" variant.
- Graph edge patterns can be formulated as path finding queries, where a
  user can specify the range of hops between the two vertices of the edge
  pattern.
- Labels and directions can be inferred using labels and directions of
  vertices within the same FROM-GRAPH-CLAUSE. A naive evaluation
  strategy is used here (until we reach a fixed point).
- The initial set of Graphix functions are included.

Change-Id: I50f032ea4acc5ba46b86ae1052590a3e945c2497
Reviewed-on: https://asterix-gerrit.ics.uci.edu/c/asterixdb-graph/+/16103
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Glenn Galvizo <ggalvizo@uci.edu>
diff --git a/asterix-graphix/src/test/resources/metadatats/testsuite.xml b/asterix-graphix/src/test/resources/metadatats/testsuite.xml
new file mode 100644
index 0000000..9861530
--- /dev/null
+++ b/asterix-graphix/src/test/resources/metadatats/testsuite.xml
@@ -0,0 +1,35 @@
+<!--
+  ~ Licensed to the Apache Software Foundation (ASF) under one
+  ~ or more contributor license agreements. See the NOTICE file
+  ~ distributed with this work for additional information
+  ~ regarding copyright ownership. The ASF licenses this file
+  ~ to you under the Apache License, Version 2.0 (the
+  ~ "License"); you may not use this file except in compliance
+  ~ with the License. You may obtain a copy of the License at
+  ~ http://www.apache.org/licenses/LICENSE-2.0
+  ~ Unless required by applicable law or agreed to in writing,
+  ~ software distributed under the License is distributed on an
+  ~ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  ~ KIND, either express or implied. See the License for the
+  ~ specific language governing permissions and limitations
+  ~ under the License.
+  -->
+<test-suite xmlns="urn:xml.testframework.asterix.apache.org"
+            ResultOffsetPath="results"
+            QueryOffsetPath="queries"
+            QueryFileExtension=".sqlpp">
+  <test-group name="create-drop-graph">
+    <test-case FilePath="graphix">
+      <compilation-unit name="create-drop-graph">
+        <output-dir compare="Text">create-drop-graph</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+  <test-group name="on-graph-dependency">
+    <test-case FilePath="graphix">
+      <compilation-unit name="on-graph-dependency">
+        <output-dir compare="Text">on-graph-dependency</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
+</test-suite>