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/SkipGramOptions.py b/ethosu/vela/tflite/SkipGramOptions.py
new file mode 100644
index 0000000..0e8bdc1
--- /dev/null
+++ b/ethosu/vela/tflite/SkipGramOptions.py
@@ -0,0 +1,46 @@
+# automatically generated by the FlatBuffers compiler, do not modify
+
+# namespace: tflite
+
+import flatbuffers
+
+class SkipGramOptions(object):
+    __slots__ = ['_tab']
+
+    @classmethod
+    def GetRootAsSkipGramOptions(cls, buf, offset):
+        n = flatbuffers.encode.Get(flatbuffers.packer.uoffset, buf, offset)
+        x = SkipGramOptions()
+        x.Init(buf, n + offset)
+        return x
+
+    # SkipGramOptions
+    def Init(self, buf, pos):
+        self._tab = flatbuffers.table.Table(buf, pos)
+
+    # SkipGramOptions
+    def NgramSize(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(4))
+        if o != 0:
+            return self._tab.Get(flatbuffers.number_types.Int32Flags, o + self._tab.Pos)
+        return 0
+
+    # SkipGramOptions
+    def MaxSkipSize(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(6))
+        if o != 0:
+            return self._tab.Get(flatbuffers.number_types.Int32Flags, o + self._tab.Pos)
+        return 0
+
+    # SkipGramOptions
+    def IncludeAllNgrams(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(8))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+def SkipGramOptionsStart(builder): builder.StartObject(3)
+def SkipGramOptionsAddNgramSize(builder, ngramSize): builder.PrependInt32Slot(0, ngramSize, 0)
+def SkipGramOptionsAddMaxSkipSize(builder, maxSkipSize): builder.PrependInt32Slot(1, maxSkipSize, 0)
+def SkipGramOptionsAddIncludeAllNgrams(builder, includeAllNgrams): builder.PrependBoolSlot(2, includeAllNgrams, 0)
+def SkipGramOptionsEnd(builder): return builder.EndObject()