Add Type Support

[KyleSmith0905]

This component does not naturally have type definitions for TypeScript. This is an old package and I do not expect changes, so I wanted to leave in a solution for users below.

If you are using this package you can add type support by creating a typescript declaration file.

// index.d.ts
declare module 'react-balance-text' {
  const BalanceText: React.ComponentClass<{
    children?: React.ReactNode,
    className?: string,
    style?: React.CSSProperties,
    resize?: boolean,
  }>;

  export = BalanceText
}