feat(patterns): add expanded animation pack with smoke tests

Add a broad set of new pattern modules and matching pattern smoke scripts so the new effects can be validated directly on-device.

src/patterns/bar_graph.py

@@ -0,0 +1,21 @@
+import utime
+
+
+class BarGraph:
+    def __init__(self, driver):
+        self.driver = driver
+
+    def run(self, preset):
+        colors = preset.c if preset.c else [(0, 255, 0), (255, 80, 0)]
+        level = max(0, min(100, int(preset.n1) if int(preset.n1) >= 0 else 50))
+        target = (self.driver.num_leds * level) // 100
+        lit = self.driver.apply_brightness(colors[0], preset.b)
+        unlit = self.driver.apply_brightness(colors[1] if len(colors) > 1 else (0, 0, 0), preset.b)
+        while True:
+            for i in range(self.driver.num_leds):
+                self.driver.n[i] = lit if i < target else unlit
+            self.driver.n.write()
+            yield
+            if not preset.a:
+                return
+            utime.sleep_ms(max(1, int(preset.d)))