Put back Framework#doPrivileged methods

NXP-27375 introduces new methods on the Framework class:

• Framework#doPrivileged(ThrowableRunnable<E> runnable)
• Framework#doPrivileged(ThrowableSupplier<T, E> supplier)

Issue is that old methods with Runnable and Supplier were removed, and new methods are not compatible with the old ones. This can cause exceptions like

java.lang.NoSuchMethodError: 'java.lang.Object org.nuxeo.runtime.api.Framework.doPrivileged(java.util.function.Supplier)'

For instance, the following was working on 10.10 but do not work anymore on 11.x:

Runnable runnable = ...
Framework.doPrivileged(runnable);

We want to put back previous methods and rename the current ones to doPrivilegedThrowing.