Build update/cleanup

[ctubbsii]

• Fix execution of QA plugins, such as license-maven-plugin
• Add generated code to the build in a simpler way without checking it in, or subjecting it to QA checks
• Place version management in parent pom
• Organize child modules in modules/ directory
• Use symlinks for test files instead of copying them with the resources plugin
• Configure annotation processor library explicitly instead of placing on the classpath
• Use fully-qualified module names (org.apache.*) to match the convention established by the automatic module names in the main Accumulo repo
• Address spotbugs, Java 21+ compiler warnings, and errorprone issues
• Update parent POM and plugins
• Add GitHub issue templates and fixup workflows

[ctubbsii]

I noticed while working on this that we have a lot of @since 1.0.0 tags. I'm not sure it's useful to have those. If a method or class has always existed, since 1.0.0, there isn't really much information being added by these. And, they trigger errorprone if the javadoc exists for that annotation only, without a summary sentence.

[ctubbsii]

Benchmarks take 28 minutes in my dev environment with these changes.