frameworkinfo: Make this a core plugin, not an optional extra.

volatility/framework/plugins/frameworkinfo.py

@@ -0,0 +1,31 @@
+from typing import List
+
+from volatility import framework
+from volatility.framework import interfaces, renderers
+from volatility.framework.interfaces import plugins
+
+
+class FrameworkInfo(plugins.PluginInterface):
+    """Plugin to list the various modular components of Volatility"""
+
+    @classmethod
+    def get_requirements(cls) -> List[interfaces.configuration.RequirementInterface]:
+        return []
+
+    def _generator(self):
+        categories = {
+            'Automagic': interfaces.automagic.AutomagicInterface,
+            'Requirement': interfaces.configuration.RequirementInterface,
+            'Layer': interfaces.layers.DataLayerInterface,
+            'Object': interfaces.objects.ObjectInterface,
+            'Plugin': interfaces.plugins.PluginInterface,
+            'Renderer': interfaces.renderers.Renderer
+        }
+
+        for category, module_interface in categories.items():
+            yield (0, (category, ))
+            for clazz in framework.class_subclasses(module_interface):
+                yield (1, (clazz.__name__, ))
+
+    def run(self):
+        return renderers.TreeGrid([("Data", str)], self._generator())