Implement include tag warnings from core
Implement the include tag warnings from Asciidoctor core in the Antora built-in include processor. This will bring the behavior of include tag handling in line with the behavior of Asciidoctor core.
Implement the include tag warnings from Asciidoctor core in the Antora built-in include processor. This will bring the behavior of include tag handling in line with the behavior of Asciidoctor core.