Allow regex for including template name via include={templateName}

[AnataBakka]

Feature summary (what you would like to be able to do and where):
https://dpl3.wikitide.org/wiki/Controlling_output_volume#include_contents_related_to_templates. I need to include the paramaters of something like {{ {{{1}}} |param1=}}, but it currently appears impossible.

Use case(s) (list the steps that you performed to discover that problem, and describe the actual underlying problem which you want to solve. Do not describe only a solution):
It's weird that include = {#.*} appears to work, albeit with some reliability issues as per https://dpl3.wikitide.org/wiki/Controlling_output_volume#include_parser_function_calls The search itself is based on simple heuristics, so the output may not always be correct. and https://followthescore.org/dpldemo/index.php?title=DPL_Example_026 where it adds In the following example the dpl call is not recognized ... .

But include {.*} does not work at all.
Also include = { {{{1}}} } does not work.

Benefits (why should this be implemented?):
Higher use cases.

[Universal-Omega]

Just a note as I prepare to release stable DPL4 in a day or two, I was going through issues. This one is quite an interesting idea, however in the very near term it is unlikely I add truly new features, as I will be working on DPL 4.0.1 for MediaWiki 1.45 compatibility but after that, this is something to consider. I agree with you, it's a great idea.