JSX-compatible XMLNode factory

[sophiebremer]

Is your feature request related to a problem? Please describe.
There is no way to create XML in JSX-syntax.

Describe the solution you'd like
TypeScript allows the definition of a JSX factory in tsconfig.json, that it will use as the compilation target of TSX. The library should provide such factory, that can be used manually and by TypeScript.

Describe alternatives you've considered
An alternative could be https://github.com/tracespace/xml-element-string, but it lacks nearly all XML features and typing.

Additional context
https://www.typescriptlang.org/tsconfig#jsxFactory
https://www.typescriptlang.org/docs/handbook/jsx.html