feat: add FeGaussianBlur filter (#2352)

# Summary

Continuation of #2316 
Introducing new filter `FeGaussianBlur`.

### Implementation notes

On Android there is no easy way to fully implement Gaussian blur, as
there is no native api for this. While a basic implementation is
possible with `RenderScript`, it does not allow for blur in one axis and
greater than `25`

## Test Plan

Example app -> Filters -> FeGaussianBlur

## Compatibility

| OS      | Implemented |
| ------- | :---------: |
| iOS     |    ✅     |
| Android |    ✅     |

react-native.config.js

@@ -18,6 +18,7 @@ module.exports = {
               'RNSVGClipPathComponentDescriptor',
               'RNSVGDefsComponentDescriptor',
               'RNSVGFeColorMatrixComponentDescriptor',
+              'RNSVGFeGaussianBlurComponentDescriptor',
               'RNSVGFilterComponentDescriptor',
               'RNSVGEllipseComponentDescriptor',
               'RNSVGForeignObjectComponentDescriptor',