Add Vela codebase

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

Change-Id: I3690f8c8f5966306ecddaeb2793c30ca9c6e2eee
diff --git a/Pipfile b/Pipfile
new file mode 100644
index 0000000..300bef6
--- /dev/null
+++ b/Pipfile
@@ -0,0 +1,9 @@
+[[source]]
+name = "pypi"
+url = "https://pypi.org/simple"
+verify_ssl = true
+
+[dev-packages]
+
+[packages]
+ethos-u-vela = {editable = true,path = "."}