The create function wraps errors which causes Kubernetes error
functions to not detect the specific types of errors. This commit
fixes it by checking the underlying error instead of error directly.

Also, all calls were calling update (even with successful
create). This commit adds a check for only those where create failed
with IsAlreadyExists error will it call update.

delete function was not checking for error and directly checking for
specific type of error. This was leading to every call returning
error. This commit fixed it by adding a check for non-nil errors
first.

Added Mocks for the Interfaces

Added Operation package

Operations package implements lower-level functions and Objects which
will be used by other Objects to interact with the cluster.