Add Vela codebase

 - Added modules ethosu.vela and ethosu.mlw_codec.
 - Added README and various configuration files.

Change-Id: I3690f8c8f5966306ecddaeb2793c30ca9c6e2eee
diff --git a/ethosu/vela/tflite/CosOptions.py b/ethosu/vela/tflite/CosOptions.py
new file mode 100644
index 0000000..7fbf848
--- /dev/null
+++ b/ethosu/vela/tflite/CosOptions.py
@@ -0,0 +1,22 @@
+# automatically generated by the FlatBuffers compiler, do not modify
+
+# namespace: tflite
+
+import flatbuffers
+
+class CosOptions(object):
+    __slots__ = ['_tab']
+
+    @classmethod
+    def GetRootAsCosOptions(cls, buf, offset):
+        n = flatbuffers.encode.Get(flatbuffers.packer.uoffset, buf, offset)
+        x = CosOptions()
+        x.Init(buf, n + offset)
+        return x
+
+    # CosOptions
+    def Init(self, buf, pos):
+        self._tab = flatbuffers.table.Table(buf, pos)
+
+def CosOptionsStart(builder): builder.StartObject(0)
+def CosOptionsEnd(builder): return builder.EndObject()