Added parameter 'loopHealthCheck' in function 'watchDependencies'

[carlosrodj]

The problem:
k8s applications that use livenessprobe perform health checks every 15 seconds. The 15s loop on watchDependencies becomes redundant

Proposed solution:

Adding the loopHealthCheck parameter with a default value of true that when fed with false disables the loop, just registering the method.

[KarineValenca]

@carlosrodj thank you for the PR! It makes a lot of sense. Would you mind adding some test cases to cover the new behavior you implemented?

[carlosrodj]

Your suggestion made me rethink the solution, taking into account that the function's return is treated as a callback, we would have to change the order of the parameters, thus generating a possible break in applications that already use lib.

Thus, I decided to create a new method that performs the registration of the health check without the looping of the setInterval.

What do you think ?

[KarineValenca]

@carlosrodj I'm analyzing this solution with a coleague, then I'll give you a feedback. Meanwhile, I think you should change your username and email in the commits, they contain sensitive information.