Add support for different documentation dir

[kerko]

right now everything generated by verty-codegen goes into:

outputDirectory\generated ~ generated classes
outputDirectory\resources ~ generated resources 
outputDirectory\ascidoc ~ generated asciidoc

It would be great if you could support changing the location of the generated asciidoc, vertx-docgen supports this so it's kind of annoying that you can't specify the location of the generated asciidoc files for codegen. maybe even respond to the same option, so they both can be used in combination

[vietj]

@kerko I've added an option to relocate classes and resources directories - please read the updated doc and tell me how it goes

[vietj]

@kerko note that asciidoc is generated by another processor

[kerko]

Thanks @vietj, will have a look when I have some spare time.

[vietj]

ok, please open an issue rather in this project https://github.com/vert-x3/vertx-docgen and close this one