[wpilib,cmd] Cache HID wrappers (#8970)

Store DriverStation-owned GenericHID and Gamepad instances in Java and
C++, and expose the cached objects to Python bindings.

Move hand-written command gamepad and joystick wrappers to compose
cached CommandGenericHID instances plus typed HID wrappers, including a
Python CommandGamepad.

This will let us remove UserControls, while helping ensure that we don't
have state smashing between GenericHID objects.

Another bonus is without inheritance, intellisense will no longer show a
bunch of annoying methods, and instead just what actually exists.

---------

Co-authored-by: Peter Johnson <johnson.peter@gmail.com>

wpilibj/src/generate/main/java/hidsim.java.jinja

@@ -19,7 +19,7 @@ public class {{ ConsoleName }}ControllerSim extends GenericHIDSim {
    */
   @SuppressWarnings("this-escape")
   public {{ ConsoleName }}ControllerSim({{ ConsoleName }}Controller joystick) {
-    super(joystick);
+    super(joystick.getHID());
     setAxesMaximumIndex({{ sticks|length + triggers|length }});
     setButtonsMaximumIndex({{ buttons|length }});
     setPOVsMaximumIndex(1);