Add alias for specific comment tag

[iveetoo]

Is there a way to register alias for specific comment tag?

I use the TypeScript compiler option stripInternal: true with the @internal tag to not emit declarations for some utility functions that are used internally. Also, I do not want to generate documentation for these utilities. I found the @hidden tag (#62) , that excludes the symbol from the generated documentation. Now, my .ts files has two comment tags:

/**
 * @internal
 * @hidden
 */
export function someUtility () { ... }

I would like to be able to register internal as alias for hidden tag. Thanks.
Before I've found the @hidden tag, I was forced to generate the doc from the .d.ts file to exclude the utilities, but there is other issue (#186)

[aciccarello]

Closing in favor of #364 since it is more specific. I think handling this case specifically makes more sense than allowing user defined aliases.