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/TensorType.py b/ethosu/vela/tflite/TensorType.py
new file mode 100644
index 0000000..53c011b
--- /dev/null
+++ b/ethosu/vela/tflite/TensorType.py
@@ -0,0 +1,15 @@
+# automatically generated by the FlatBuffers compiler, do not modify
+
+# namespace: tflite
+
+class TensorType(object):
+    FLOAT32 = 0
+    FLOAT16 = 1
+    INT32 = 2
+    UINT8 = 3
+    INT64 = 4
+    STRING = 5
+    BOOL = 6
+    INT16 = 7
+    COMPLEX64 = 8
+    INT8 = 9