19.1.0

• Added support for the SharedArrayBuffer type, [AllowResizable] and [AllowShared] extended attributes, and the AllowSharedBufferSource typedef. (#276, @MattiasBuelens)
• Fixed processing of unions with callback functions and callback interfaces. (#276, @MattiasBuelens)
• Simplified the generated code for unions that include the object type. (#276, @MattiasBuelens)