feat(build,virtual-background) don't use an external bundle for the effect

The majority of the code is in the WASM file and models, this is just a few KB.
It's so little, in fact, that the performance hint for the main bundle didn't
have to be adjusted.

Makefile

 		$(OUTPUT_DIR)/analytics-ga.js \
 		$(BUILD_DIR)/analytics-ga.min.js \
 		$(BUILD_DIR)/analytics-ga.min.map \
-		$(BUILD_DIR)/virtual-background-effect.min.js \
-		$(BUILD_DIR)/virtual-background-effect.min.map \
 		$(BUILD_DIR)/rnnoise-processor.min.js \
 		$(BUILD_DIR)/rnnoise-processor.min.map \
 		$(BUILD_DIR)/close3.min.js \

react/features/base/tracks/loadEffects.web.js

 // @flow
 
 import { createScreenshotCaptureEffect } from '../../stream-effects/screenshot-capture';
-import { getBackgroundEffect } from '../../virtual-background';
+import { createVirtualBackgroundEffect } from '../../stream-effects/virtual-background';
 
 import logger from './logger';
 
  */
 export default function loadEffects(store: Object): Promise<any> {
     const state = store.getState();
+    const virtualBackground = state['features/virtual-background'];
 
-    const backgroundPromise = state['features/virtual-background'].backgroundEffectEnabled
-        ? getBackgroundEffect()
+    const backgroundPromise = virtualBackground.backgroundEffectEnabled
+        ? createVirtualBackgroundEffect(virtualBackground)
             .catch(error => {
                 logger.error('Failed to obtain the background effect instance with error: ', error);
 

react/features/virtual-background/actions.js

 // @flow
 
-import { getLocalVideoTrack } from '../../features/base/tracks';
+import { getLocalVideoTrack } from '../base/tracks';
+import { createVirtualBackgroundEffect } from '../stream-effects/virtual-background';
 
 import { BACKGROUND_ENABLED, SET_VIRTUAL_BACKGROUND } from './actionTypes';
-import { getBackgroundEffect } from './functions';
 import logger from './logger';
 
 /**
 
         try {
             if (enabled) {
-                await jitsiTrack.setEffect(await getBackgroundEffect(virtualBackground));
+                await jitsiTrack.setEffect(await createVirtualBackgroundEffect(virtualBackground));
                 dispatch(backgroundEnabled(true));
             } else {
                 await jitsiTrack.setEffect(undefined);

react/features/virtual-background/functions.js

 // @flow
 
-import { getJitsiMeetGlobalNS, loadScript } from '../base/util';
 
 let filterSupport;
 
-/**
- * Returns promise that resolves with the blur effect instance.
- *
- * @param {Object} virtualBackground - The virtual object that contains the background image source and
- * the isVirtualBackground flag that indicates if virtual image is activated .
- * @returns {Promise<JitsiStreamBackgroundEffect>} - Resolves with the background effect instance.
- */
-export function getBackgroundEffect(virtualBackground: Object) {
-    const ns = getJitsiMeetGlobalNS();
-
-    if (ns.effects && ns.effects.createVirtualBackgroundEffect) {
-        return ns.effects.createVirtualBackgroundEffect(virtualBackground);
-    }
-
-    return loadScript('libs/virtual-background-effect.min.js').then(() =>
-        ns.effects.createVirtualBackgroundEffect(virtualBackground));
-}
-
 /**
  * Checks context filter support.
  *

webpack.config.js

     // and sourceMapFilename parameters which target libs without .min in dev
     // mode. Thus we change these modules to have the same filename in both
     // prod and dev mode.
-    Object.assign({}, config, {
-        entry: {
-            'virtual-background-effect': './react/features/stream-effects/virtual-background/index.js'
-        },
-        output: Object.assign({}, config.output, {
-            library: [ 'JitsiMeetJS', 'app', 'effects' ],
-            libraryTarget: 'window',
-            filename: '[name].min.js',
-            sourceMapFilename: '[name].min.map'
-        }),
-        performance: getPerformanceHints(1 * 1024 * 1024)
-    }),
-
     Object.assign({}, config, {
         entry: {
             'rnnoise-processor': './react/features/stream-effects/rnnoise/index.js'