Add TypeDefinition(TypeScript support)

[mitsuruog]

FYI @oklas

I wrote the TypeDefinition for your project.
and now we can use that as npm module.

npm install @types/react-breadcrumbs-dynamic

let me know if it has any problem. 👍

please close it after reading.

[oklas]

Thank you for contribution. 👍
I mentioned how to install in doc.
Short ts example with custom BreadcrumbsItemProps will be good.

[FriOne]

Typings do not contain withBreadcrumbsItem