FX improvements and cleanup (#4145)

Improvements & merges of FX

- Scrolling Text: Gradient Palette support added
- Waving Cell: Improved with higher temporal resolution (smoother at lower speeds) and added additional mode setting and optional blurring
- Julia: added blur option
- Squared Swirl: added fade option

- Added smearing option to:
    - DNA
    - DNA Spiral
    - Drift
    - Drift Rose
    - Crazy Bees
    - Ripple
    - Colored Bursts
    - Frizzles
    - Lissajous
    - Sindots
    - Spaceships

- Added palette support to:
    - Crazy Bees
    - Polar Lights
    - Drift Rose

- Changed default palette handling (no more special treatment for some FX)
- Merged puddles and puddlepeak
- Merged Gravcenter, Gravcentric, Gravfreq and Gravimeter (saves 1.2k of flash)
- Merged meteor and meteor smooth
- Renamed police_base into mode_two_dots as that was just an alias
- Added 'Traffic Light' palette (originally defined in Polar Lights FX)
-  Firenoise: removed local palette, use fire palette -> slight change in looks (+bugfix)
- Some code cleanup (removed unused / commented stuff)
- Moved dev info for AR to the top so ist easier to find as a reference, also added link to KB there

wled00/ir.cpp

@@ -435,7 +435,7 @@ static void decodeIR44(uint32_t code)
     case IR44_DIY2        : presetFallback(2, FX_MODE_BREATH,        0); break;
     case IR44_DIY3        : presetFallback(3, FX_MODE_FIRE_FLICKER,  0); break;
     case IR44_DIY4        : presetFallback(4, FX_MODE_RAINBOW,       0); break;
-    case IR44_DIY5        : presetFallback(5, FX_MODE_METEOR_SMOOTH, 0); break;
+    case IR44_DIY5        : presetFallback(5, FX_MODE_METEOR, 0);        break;
     case IR44_DIY6        : presetFallback(6, FX_MODE_RAIN,          0); break;
     case IR44_AUTO        : changeEffect(FX_MODE_STATIC);                break;
     case IR44_FLASH       : changeEffect(FX_MODE_PALETTE);               break;