chore: new pyboy demo

examples/python/pocket.py

-import boytacean
+from time import time
+from boytacean import GameBoy
 
-gb = boytacean.GameBoy()
+gb = GameBoy()
 gb.load()
 gb.load_rom("../../res/roms/demo/pocket.gb")
+start = time()
 for _ in range(6000):
     gb.next_frame()
+print(f"Time taken: {(time() - start)}")
 gb.save_image("pocket.png")

examples/python/pocket_pyboy.py

+from time import time
+from pyboy import PyBoy
+
+with PyBoy("../../res/roms/demo/pocket.gb", disable_renderer=True) as pyboy:
+    pyboy.set_emulation_speed(0)
+    print(pyboy.cartridge_title())
+    start = time()
+    for _ in range(6000):
+        pyboy.tick()
+    print(f"Time taken: {(time() - start)}")