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/clock_sweep.py

@@ -0,0 +1,33 @@
+import utime
+
+
+class ClockSweep:
+    def __init__(self, driver):
+        self.driver = driver
+
+    def run(self, preset):
+        colors = preset.c if preset.c else [(255, 255, 255), (60, 60, 60)]
+        width = max(1, int(preset.n1) if int(preset.n1) > 0 else 1)
+        marker = max(0, int(preset.n2) if int(preset.n2) > 0 else 0)
+        pos = self.driver.step % max(1, self.driver.num_leds)
+        last = utime.ticks_ms()
+        while True:
+            d = max(1, int(preset.d))
+            now = utime.ticks_ms()
+            if utime.ticks_diff(now, last) >= d:
+                bg = self.driver.apply_brightness(colors[1] if len(colors) > 1 else (0, 0, 0), preset.b)
+                fg = self.driver.apply_brightness(colors[0], preset.b)
+                for i in range(self.driver.num_leds):
+                    self.driver.n[i] = bg
+                    if marker > 0 and i % marker == 0:
+                        self.driver.n[i] = ((bg[0]*2)//3, (bg[1]*2)//3, (bg[2]*2)//3)
+                for w in range(width):
+                    self.driver.n[(pos + w) % self.driver.num_leds] = fg
+                self.driver.n.write()
+                pos = (pos + 1) % max(1, self.driver.num_leds)
+                self.driver.step = pos
+                last = utime.ticks_add(last, d)
+                if not preset.a:
+                    yield
+                    return
+            yield