Adjust Left Margin and time axis to fit

[AliSoftware]

• The left margin is adjusted using an estimation based on the width of the largest label (target name) – Closes Target names in graph are truncated #8
• The time axis now uses the .timeDomainMode("fit") (instead of .timeDomainMode("fixed") with a fixed 10:00 max value) – Closes X Axis max value too big #9
• Theoretical Minimum is now rounded to two digits (to avoid the .33333333333 kind of values)

[AliSoftware]

Side note: I'm a bit confused as the .gemspec in this repo mentions a version 0.1.0, but on RubyGems the latest published version is 0.1.1.

Did you forget to commit the version bump from the .gemspec when you did push the 0.1.1 to rubygems?
In any case, I guess for the next release you'll have to remember to bump the xcode-build-times.gemspec to 0.1.2 (and not 0.1.1 again) 😉

[PaulTaykalo]

Right.
The main idea was to be able to compare speed of two different runs.
It will be really hard to do with scaled results
If we're about to play with scaling, I would rather go with some parameter. If possible.

[khanlou]

But that's what this PR does. Specifically, the line .timeDomainMode("fit") makes it automatically adjust the graph to be full width. I tried it out locally on my generated javascript files and it works great.

[PaulTaykalo]

My point is that with this size to fit option, it is hard to visually compare two runs.
So I suggest to have both "fit" and "fixed' width options, and not having simple switch to one of the two options. Both solutions are needed.

• fixed - for comparing different builds (i.e. if you're about to speed up build time)
• fit - to compare different parts of the build

[PaulTaykalo]

For example. having additional option passed in here
https://github.com/PaulTaykalo/xcode-build-times-rendering/blob/master/lib/xcode-build-times.rb#L111

for switching between fixed and fit variants

[PaulTaykalo]

JFYI: I really grateful for this PR :)