Added integer based sin()/cos() functions, changed all trig functions to wled_math

- `sin16_t() / cos16_t()` are faster and more accurate than fastled versions
- `sin_approx() / cos_approx()` are float wrappers for `sin16_t() / cos16_t()` and are accurate enough to replace `sinf()/cosf()`
- `atan2()` is used only in octopus to calculate center offset, new approximated version saves flash
- `tan(), atan(), asin(), acos(), floor(), fmod()` are used only for sunrise/sunset calculation, using wled_math version saves flash
- `beatsinx()` replacements are to make use of new `sin16_t()/sin8_t()` functions to reduce flash size
- Extensively tested surnise/sunset calculation: deviation is 1min. max
- Tested some of the relevant FX and found no visual difference: Julia, 2D Drift, Drift Rose, Ghost rider, Rotozoomer, Palette, Arc 1D expansion
- total flash savings: 7.4k

usermods/Analog_Clock/Analog_Clock.h

@@ -102,9 +102,9 @@ private:
 
     void secondsEffectSineFade(int16_t secondLed, Toki::Time const& time) {
         uint32_t ms = time.ms % 1000;
-        uint8_t b0 = (cos8(ms * 64 / 1000) - 128) * 2;
+        uint8_t b0 = (cos8_t(ms * 64 / 1000) - 128) * 2;
         setPixelColor(secondLed, gamma32(scale32(secondColor, b0)));
-        uint8_t b1 = (sin8(ms * 64 / 1000) - 128) * 2;
+        uint8_t b1 = (sin8_t(ms * 64 / 1000) - 128) * 2;
         setPixelColor(inc(secondLed, 1, secondsSegment), gamma32(scale32(secondColor, b1)));
     }