Follow bazel's modules for annotation processors by introducing
a java_plugin module type that can contain extra metadata about
the annotation processor, the processor class and a flag to
specify if the annotation processor is compatible with the
turbine optimization. Deprecate the annotation_processors
property, which took a list of java_library_host modules, in
favor of the plugins property, which takes a list of java_plugin
modules. The annotation_processors property will be removed
once all uses have been replaced with plugins.
Bug: 77284273
Test: plugin_test.go
Test: m caliper
Change-Id: I37c1e80eba71ae2d6a06199fb102194a51994989