Adding resize preprocessor (#152)

* Adding resize preprocessor

* Using ! on form

* Haha oops

* Using createImageBitmapPolyfill

* Updating package.json

* Oops again

* Ooops again

src/codecs/preprocessors.ts

@@ -1,15 +1,21 @@
 import { QuantizeOptions, defaultOptions as quantizerDefaultOptions } from './imagequant/quantizer';
+import { ResizeOptions, defaultOptions as resizeDefaultOptions } from './resize/resize';
 
 interface Enableable {
   enabled: boolean;
 }
 export interface PreprocessorState {
   quantizer: Enableable & QuantizeOptions;
+  resize: Enableable & ResizeOptions;
 }
 
-export const defaultPreprocessorState = {
+export const defaultPreprocessorState: PreprocessorState = {
   quantizer: {
     enabled: false,
     ...quantizerDefaultOptions,
   },
+  resize: {
+    enabled: false,
+    ...resizeDefaultOptions,
+  },
 };