Update react-dom in packages/oc-template-react from 16.1.1 to 16.2.0

[dependencies]

Dependencies.io has updated react-dom (a npm dependency in packages/oc-template-react) from "16.1.1" to "16.2.0".

16.2.0

React

• Add Fragment as named export to React. (clemmy in #10783)
• Support experimental Call/Return types in React.Children utilities. (MatteoVH in #11422)

React DOM

• Fix radio buttons not getting checked when using multiple lists of radios. (landvibe in #11227)
• Fix radio buttons not receiving the onChange event in some cases. (jquense in #11028)

React Test Renderer

• Fix setState() callback firing too early when called from componentWillMount. (accordeiro in #11507)

React Reconciler

• Expose react-reconciler/reflection with utilities useful to custom renderers. (rivenhk in #11683)

Internal Changes

• Many tests were rewritten against the public API. Big thanks to everyone who contributed!

[nickbalestra]

don't merge, externals need to be updated accordingly (I'll try to leverage dependencies.io to see if we can also update that part of the file)