Breadcrumbs: add opportunity to use another Link component

[Olga]

I use BrowserRouter and Link from react-router-dom. And I want to use this Link in breadcrumbs. But:

• Breadcrumbs component uses component from gravity-ui
• I may use my Link in prop renderItemContent, but I'll get console error because of nested <a />
• Link in gravity-ui may be rendered as <span /> if href is not a string, but I need href prop for my Link

I think that some prop like renderLink?: () => ReactNode should help me. Or maybe there's some best solution.