BigFloat output incorrect for large exponents

[dpsanders]

julia> IntervalArithmetic.atomic(Interval{BigFloat}, -Inf)
[-∞, -5.87565e+1388]₂₅₆

julia> prevfloat(big(Inf))
5.875653789111587590936911998878442589938516392745498308333779606469323584389875e+1388255822130839282

The exponent in the interval display is wrong (truncated).

cc @yashrajgupta

[yashrajgupta]

@dpsanders What do we need to do here?

[dpsanders]

Display the correct BigFloat exponent in the interval output.

[lbenet]

I think the problem is related to the truncation in the standard output format:

julia> @format full
Display parameters:
- format: full
- decorations: false
- significant figures: 6

julia> IntervalArithmetic.atomic(Interval{BigFloat}, -Inf)
Interval(-Inf, -5.875653789111587590936911998878442589938516392745498308333779606469323584389875e+1388255822130839282)

[lbenet]

Fixed (partially at least, since windows has issues with BigFloats) in the 1.0-dev branch...