[robotpy][examples] Split examples and snippets (#8944)

This also updates the bazel scripts to behave more like the C++ and Java
examples, and updates the copybara scripts to be able to sync up
`mostrobotpy`

robotpyExamples/examples/HatchbotTraditional/commands/complexauto.py

@@ -0,0 +1,37 @@
+#
+# Copyright (c) FIRST and other WPILib contributors.
+# Open Source Software; you can modify and/or share it under the terms of
+# the WPILib BSD license file in the root directory of this project.
+#
+
+import commands2
+
+import constants
+
+from .drivedistance import DriveDistance
+from .releasehatch import ReleaseHatch
+
+from subsystems.drivesubsystem import DriveSubsystem
+from subsystems.hatchsubsystem import HatchSubsystem
+
+
+class ComplexAuto(commands2.SequentialCommandGroup):
+    """
+    A complex auto command that drives forward, releases a hatch, and then drives backward.
+    """
+
+    def __init__(self, drive: DriveSubsystem, hatch: HatchSubsystem):
+        super().__init__(
+            # Drive forward the specified distance
+            DriveDistance(
+                constants.kAutoDriveDistanceInches, constants.kAutoDriveVelocity, drive
+            ),
+            # Release the hatch
+            ReleaseHatch(hatch),
+            # Drive backward the specified distance
+            DriveDistance(
+                constants.kAutoBackupDistanceInches,
+                -constants.kAutoDriveVelocity,
+                drive,
+            ),
+        )