feat(push): add OPPO and vivo push plugins, bump JPush to 6.1.0

- Add withOppoPush.js and withVivoPush.js config plugins
- Register new plugins in app.json
- Bump JPush version from 5.8.0 to 6.1.0 in Honor/Huawei/Xiaomi plugins

plugins/withHuaweiPush.js

@@ -9,7 +9,7 @@ const fs = require('fs');
 const path = require('path');
 
 const withHuaweiPush = (config, options = {}) => {
-  const { jpushVersion = '5.8.0' } = options;
+  const { jpushVersion = '6.1.0' } = options;
 
   config = withSettingsGradle(config, (config) => {
     const contents = config.modResults.contents;