SummaryJavadoc

[romani]

Merge/move
https://github.com/checkstyle/test-configs/tree/main/SummaryJavadoc/japan-period
To
https://github.com/checkstyle/test-configs/tree/main/SummaryJavadoc/Example3

It shows us that extractor config should has configuration up to each Example.

But when we did this update, we required execution with Japan period on English sourced project.

Let's add:

# custom javadoc tags
nbia-dcm4che-tools|git|https://github.com/thprakash/nbia-dcm4che-tools|c3591e6f0f84827586db25abded6708e5386ef1a||

And place add jdk to project list.
So properties file will have 3 projects for config with Japan period.

[romani]

@relentless-pursuit , please do this sooner.