A custom_filter() with custom_filter.js #45

Add a custom_filter() on the first line of filters.js, and each repository should contain a custom_filter.js, which can hosts temporary filters. This temporary filters will be used when the main filter.js file cannot add certain filters that will break the entire code. Once it is merged into main filter.js, it could be removed from custom_filter.js.

For example the current authifyFame has fiverr, upwork and dev.to filters, but the authifyURL doesn't have it yet. So a common filter.js will break the functionality in authifyFame.

Does it fails the entire concept of a single repository for common filters?