Reconfigure mark one for consumption by external projects

[rmainwork]

• Removes the mark-one alias in favor of relative paths to module to allow the components to be bundled properly by consuming apps (full write-up described in the commit message of 626b7d4).
• Update package.json to make the library entry point and type info available to package consumers
• Add postinstall script to transpile the JSX when pulling the package in from GitHub.

[codecov[bot]]

Codecov Report

Merging #33 into develop will not change coverage. The diff coverage is 100%.

@@          Coverage Diff           @@
##           develop    #33   +/-   ##
======================================
  Coverage      100%   100%           
======================================
  Files           25     19    -6     
  Lines          183    178    -5     
  Branches         0     16   +16     
======================================
- Hits           183    178    -5

Impacted Files	Coverage Δ
src/Button/BasicButton.tsx	100% <ø> (ø)	:arrow_up:
src/Tables/TableCell.tsx	100% <ø> (ø)	:arrow_up:
src/Theme/GlobalCSS.tsx	100% <ø> (ø)	:arrow_up:
src/Layout/Header.tsx	100% <ø> (ø)	:arrow_up:
src/Tables/Table.tsx	100% <ø> (ø)	:arrow_up:
src/Icons/IconLink.tsx	100% <ø> (ø)	:arrow_up:
src/Layout/Logo.tsx	100% <ø> (ø)	:arrow_up:
src/Dropdown/Dropdown.tsx	100% <ø> (ø)	:arrow_up:
src/Tables/TableHead.tsx	100% <ø> (ø)	:arrow_up:
src/Layout/PageBody.tsx	100% <ø> (ø)	:arrow_up:
... and 18 more

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[rmainwork]

Thinking about this some more, the only concern I might have about updating the examples folder like I did in 826553a would mean that the examples aren't quite examples that you can copy/paste any more.

So, maybe 826553a should be reverted, and the mark-one alias put back just for the purposes of the styleguide? Open to suggestions on this though...

[jonseitz]

@rmainseas Yeah, I think you've raised a good point about the pastability of the example code. Let's revert for the examples, keep the alias, and make sure we're vigilant about using relative imports in future code reviews