Asciidoc importer does not read specification items defined in table cells

[sophokles73]

Description

Specification item blocks can be embedded in table cells that have the Asciidoc style. However, the Asciidoc Importer currently does not find nor read such nested specification item definitions.

Steps to reproduce

1. Run a trace on an Asciidoc that contains a specitem definition in a nested table cell:

   .Test Table
   [%autowidth]
   |===
   |Column 1 |Column 2 
   
   |Default Style
   a|
   Asciidoc Style
   
   [.specitem, oft-sid="req~nested-in-table~1", oft-needs="dsn"]
   --
   The description
   --
   |===

2. The report does not contain the specitem from the table cell.

Environment

• OFT: 4.1.0
• AsciiDoc plugin: 0.2.0
• OS: Ubuntu 22.04
• Java Version: Temurin 17