Change Request: opening API for BundleSchemeResourceFinderFactory.SCHEMES class attribute

Could you please open the implementation of the attribute `SCHEMES` of the class `org.glassfish.jersey.server.internal.scanning.BundleSchemeResourceFinderFactory` to allow runtime modifications, e.g.

```java
public static final Set SCHEMES = new TreeSet<>(Collections.singleton("bundle"));
```

So library users can programmatically add other schemes, e.g.

```java
BundleSchemeResourceFinderFactory.SCHEMES.add("bundleentry");
```

A use case is for the Eclipse plugins, that are OSGi bundles, were the scheme can be `bundleentry` as well.

-----

Otherwise, could you please at least add `bundleentry` to the Set, e.g.

```java
private static final Set SCHEMES = Set.of("bundle", "bundleentry");
```