kernel: Move object class to its own source files

General moving to keep kernel object types separate from the direct
kernel code. Also essentially a preliminary cleanup before eliminating
global kernel state in the kernel code.

src/core/hle/kernel/object.cpp

@@ -0,0 +1,37 @@
+// Copyright 2018 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+#include "core/hle/kernel/object.h"
+
+namespace Kernel {
+
+Object::~Object() = default;
+
+bool Object::IsWaitable() const {
+    switch (GetHandleType()) {
+    case HandleType::Event:
+    case HandleType::Mutex:
+    case HandleType::Thread:
+    case HandleType::Semaphore:
+    case HandleType::Timer:
+    case HandleType::ServerPort:
+    case HandleType::ServerSession:
+        return true;
+
+    case HandleType::Unknown:
+    case HandleType::SharedMemory:
+    case HandleType::Process:
+    case HandleType::AddressArbiter:
+    case HandleType::ResourceLimit:
+    case HandleType::CodeSet:
+    case HandleType::ClientPort:
+    case HandleType::ClientSession:
+        return false;
+    }
+
+    UNREACHABLE();
+}
+
+} // namespace Kernel