NativeAOT createdump fork/exec for crash dump generation (#89203)

NativeAOT createdump fork/exec for crash dump generation (#89203)

* NativeAOT createdump fork/exec for crash dump generation

Port the .NET Core createdump fork/exec code to NativeAOT.

Add src/native/inc/generatedumpflags.h. Remove dup definitions of this enum.

Move and port clrconfignocache.h from src/coreclr/inc to src/native/inc/.

* Add building more command line arguments for signal number, etc.

Fix some build problems.

* Code review feedback - use RhConfig instead of clrconfignocache.h

* Fix string buffer length

* Fix nativeaot test failures. Added crash buffer address to debug header contract

* Generate a core dump on unhandled SIGSEGV/SIGFPE

Add PalCreateDump.h with all the public functions.

* Build and pass an EXCEPTION_RECORD for Linux like it was done for Windows. The next step is to pass the address of it to createdump.

* Pass exception record address to createdump

* Add special diagnostic info memory region

Contains the exception record address for Native AOT crashes.