implement breaks in histogram's ggplot

[edublancas]

once we close #711

we can implement breaks: #711 (comment)

[bbeat2782]

Acceptance Criteria

1. Implement breaks like in ggplot in R (Default should be None. Thus, bins should be used by default and use breaks only if a user specifies one.)
2. Add documentation to explain how to use breaks
3. Add test functions

I have one question about the implementation. In R, when both bins and breaks are provided, breaks takes precedence over bins, so breaks argument is used. Do we want to replicate this or do you think raising an error is more appropriate?

[edublancas]

I have one question about the implementation. In R, when both bins and breaks are provided, breaks takes precedence over bins, so breaks argument is used. Do we want to replicate this or do you think raising an error is more appropriate?

An error when both bins and breaks are passed is better.

[bbeat2782]

okay I will raise an error