Add a wildcard attribute read API on MTRDevice. (project-chip#35562)

* Add a wildcard attribute read API on MTRDevice.

* Adding new XPC protocol

* Restyled by whitespace

* Restyled by clang-format

* Add unit test for NSCoding bits.

* Fix up XPC protocol bits.

---------

Co-authored-by: Justin Wood <woody@apple.com>
Co-authored-by: Restyled.io <commits@restyled.io>

Author: 3 people

src/darwin/Framework/CHIP/MTRDevice.mm

@@ -1268,6 +1268,17 @@ - (void)writeAttributeWithEndpointID:(NSNumber *)endpointID
     return [NSArray array];
 }
 
+- (NSArray<NSDictionary<NSString *, id> *> *)readAttributePaths:(NSArray<MTRAttributeRequestPath *> *)attributePaths
+{
+#define MTRDeviceErrorStr "MTRDevice readAttributePaths: must be handled by subclasses"
+    MTR_LOG_ERROR(MTRDeviceErrorStr);
+#ifdef DEBUG
+    NSAssert(NO, @MTRDeviceErrorStr);
+#endif // DEBUG
+#undef MTRDeviceErrorStr
+    return [NSArray array];
+}
+
 - (void)invokeCommandWithEndpointID:(NSNumber *)endpointID
                           clusterID:(NSNumber *)clusterID
                           commandID:(NSNumber *)commandID