Support multiple update connector configmap

[oun]

Hi,

I tried add,update,delete multiple connector configmaps in the same git commit but the connect-operator did not execute all configmaps that were changed. The operator only process the first event in the binding-context. I can create pull request to enhance the connect-operator.

Thanks

[alexnikitchuk]

Looks like it caused by https://github.com/flant/shell-operator/issues/322