ADD storybook logo for inside terminal for future CLI or easteregg

[ndelangen]

Issue:

What I did

I added a script that is able to print the storybook logo in color & monochrome to the terminal

How to test

node ./scripts/logo.js

Why

I want to use this for the cli at some point.

[ndelangen]

[codecov]

Codecov Report

Merging #1499 into master will decrease coverage by 0.07%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1499      +/-   ##
==========================================
- Coverage   14.61%   14.54%   -0.08%     
==========================================
  Files         202      202              
  Lines        4653     4649       -4     
  Branches      512      500      -12     
==========================================
- Hits          680      676       -4     
- Misses       3537     3543       +6     
+ Partials      436      430       -6

Impacted Files	Coverage Δ
app/react/src/client/preview/client_api.js	39.28% <0%> (-2.76%)	⬇️
addons/knobs/src/components/types/Number.js	8.06% <0%> (ø)	⬆️
addons/info/src/components/PropVal.js	0% <0%> (ø)	⬆️
app/react/src/server/iframe.html.js	29.26% <0%> (ø)	⬆️
app/react/src/server/build.js	0% <0%> (ø)	⬆️
addons/info/src/components/markdown/htags.js	0% <0%> (ø)	⬆️
addons/events/src/components/Event.js	0% <0%> (ø)	⬆️
addons/knobs/src/components/PropForm.js	8.51% <0%> (ø)	⬆️
lib/ui/src/modules/ui/containers/down_panel.js	23.52% <0%> (ø)	⬆️
addons/storyshots/src/storybook-channel-mock.js	0% <0%> (ø)	⬆️
... and 22 more

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