Make logs prefixed with the namespace and name of the Nexus being reconciled

[LCaparelli]

Is your feature request related to a problem? Please describe.
It gets confusing when multiple Nexus instances are being managed in the same cluster or namespace.

Describe the solution you'd like
SSIA

Describe alternatives you've considered
Modifying the logger to hold the name of the Nexus instance. When it's nil, don't add the prefix.

Additional context
N/A

Would you be able to assist in testing this feature if implemented?
Yes