MINIFICPP-263: Move merge content to an extension. Also remove circul…

[phrocker]

…ar dependencies

MINIFICPP-263: Remove boost deps by updating yaml-cpp

MINIFICPP-263: Resolve issues on u14

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[apiri]

reviewing

[apiri]

Checked build and functionality in a few different environments and everything looked good. Verified lack of dependency on boost for running.

The upgrading of YAML CPP re-introduced all of its tests and additional sources (primarily Google Test) which were previously removed from the code base. Could we get those items/tests removed in this update as well?

[apiri]

Can we kill the test folder. We had done this previously and will help keep our LICENSE a little tidier.

[phrocker]

@apiri I removed the tests in my last commit.

[apiri]

Looks great. Will get this merged. Thanks!

[apiri]

@phrocker Included the closes phrase in the commit but didn't seem to get picked up here. If you could please close this when you get the opportunity it would be appreciated.