[NativeAOT] Try to move GC bridge code from C++ to C#

### Android framework version

net11.0-android (Preview)

### Affected platform version

.NET 11

### Description

The GC bridge for Native AOT and CoreCLR is currently implemented in C++ (#10198). I would like to explore the posibility of moving as much code from native to managed code. All the processing in the background thread could be in managed code (what is now `void GCBridge::bridge_processing ()`). The only thing that needs to be a native entry point (can be C, doesn't have to be C++) is now `void GCBridge::log_mark_cross_references_args_if_enabled (MarkCrossReferencesArgs *args)` which runs when the managed world is stopped.

### Steps to Reproduce

-

### Did you find any workaround?

_No response_

### Relevant log output

```shell

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