[Fix] Added bob.devtools and bob.pipelines that were missing in some places

I rebuilt the doc locally following this change and it looks to fix the problem of bob.devtools and bob.pipelines not appearing in the doc.

doc/index.rst

@@ -68,6 +68,7 @@ Index of all packages
    bob.measure <bob/bob.measure/doc/index.rst>
    bob.pad.base <bob/bob.pad.base/doc/index.rst>
    bob.pad.face <bob/bob.pad.face/doc/index.rst>
+   bob.pipelines <bob/bob.pipelines/doc/index.rst>
    bob.sp <bob/bob.sp/doc/index.rst>
    gridtk <bob/gridtk/doc/index.rst>
    readme_index.rst