[GR-64626] Implement boot libraries in Java for Espresso.

[graalvmbot]

No description provided.

[rakachan]

This is the preliminary PR that kickstarts the work on #10239 and #4625.
For trying it out, run espresso with --experimental-options --java.UseEspressoLibs=true

Currently, this is only runs Hello World.

For impl details:

• We are re-using the Espresso substitution mechanisms to implement guest native methods. These substitutions get associated with a given "library" through the group annotation value. This allows associating java.lang._ methods to libjava and sun.nio._ methods to libnio for example.
• The EspressoLibsNativeAccess class intercepts the various requests to load native libraries, and provides handles to our own substitution groups. The VM is in control of how libjava is loaded.
• By providing our own "native" implementation for NativeLibraries.load and NativeLibraries.findBuiltinLib, we can intercept the loading of known libraries (Such as libnio, libzip, etc), and link against our own.
• Note: Though created with the same mechanisms, these native-"Substitutions" are not like the original substitutions: They do not replace the guest call unconditionally, and are required to be native-linked (in Method.findJniCallTarget) before they can be executed. As such, methods that are not native can not be substituted this way.