Add runtime base address to Native AOT crash info JSON (#93791)

The Native AOT Watson and SOS support needs to the module's base address containing
the runtime for adequate performance. Add the module base address in the crash info
as "runtime_base". Changed the "runtime" to the clearer "runtime_version" property.

Verified the address in local testing. Modified the !crashinfo command in SOS to display this new base address.

Very low. Native AOT unhandled exception crash info.

Co-authored-by: Mike McLaughlin <mikem@microsoft.com>

src/coreclr/nativeaot/System.Private.CoreLib/src/System/CrashInfo.cs

@@ -103,12 +103,17 @@ private bool WriteHeader(RhFailFastReason reason, ulong crashingThreadId, string
             if (!WriteValue("version"u8, "1.0.0"u8))
                 return false;
 
-            if (!WriteValue("runtime"u8, new ReadOnlySpan<byte>(RuntimeImports.RhGetRuntimeVersion(out int cbLength), cbLength)))
+            static void Dummy() { }
+
+            if (!WriteHexValue("runtime_base"u8, (ulong)RuntimeImports.RhGetOSModuleFromPointer((nint)(void*)(delegate*<void>)&Dummy)))
                 return false;
 
             if (!WriteIntValue("runtime_type"u8, (int)RuntimeType.NativeAOT))
                 return false;
 
+            if (!WriteValue("runtime_version"u8, new ReadOnlySpan<byte>(RuntimeImports.RhGetRuntimeVersion(out int cbLength), cbLength)))
+                return false;
+
             CrashReason crashReason = reason switch
             {
                 RhFailFastReason.EnvironmentFailFast => CrashReason.EnvironmentFailFast,