build: Adding waf scripts and waf-tools for building the source code.

Change-Id: I5f2831a113c2db9c6965ba82d90027899b4d7031
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..444b8db
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,6 @@
+.DS*
+.waf-1*
+.lock*
+**/*.pyc
+build/
+