DynamicScheme is impossible to construct in TypeScript

[JoshuaBrest]

In the current TypeScript implementation, it is impossible to construct a DynamicScheme. The constructor for DynamicScheme requires the Variant enum, which is not a const enum. This enum is not exported. Additionally, no functionality is available to auto-generate a DynamicScheme from a given color or image, which limits dynamic usability.

Fix

File: typescript/index.ts

  export * from './dynamiccolor/dynamic_color.js';
  export * from './dynamiccolor/dynamic_scheme.js';
  export * from './dynamiccolor/material_dynamic_colors.js';
+ export * from './dynamiccolor/variant.js';