Add metrics

[csuka]

We'd like to use the operator in production.

However, currently, the metrics expose generic information about the pod itself, rather than useful insight.
Useful metrics could include;

• Is the operator logged in at Lastpass
• Total amount of requests to LastPass
• Amount of errors at the operator + reason
• Generic health of operator

etc..

Is this something one could easily create?

[niqdev]

Hi @csuka I'm glad of it! I wasn't planning to add those metrics at the moment, but PRs are more than welcome.

I would recommend to use the official library. Have a look at this example