[5.x] React search box tool bar (#10821)

[stacey-gammon]

backports #10821

• Add a react tool bar search box

Create basic react toolbar elements and update uiframework docs

• Package.json: put back ngreact (edits got overwritten)

• Add jest tests

• Combine basic tests into one, eliminate helper functions

• Address code review comments

• move tool_bar_footer into it’s own file.
• some stylistic html changes
• comments

• Remove toolbar_with_search_only

It isn’t being used in kibana currently, so we probably don’t need to
support it in our ui_Framework, and the need for the custom
“className="kuiToolBar--searchOnly”” indicates we should resdesign it
if we do need it some day.

• Fix issue with default to named conversion merge

• rename commonHtmlProps = requiredProps

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