Kernel: Introduce skeleton Process class to hold process data

src/core/CMakeLists.txt

@@ -29,6 +29,7 @@ set(SRCS
             hle/kernel/event.cpp
             hle/kernel/kernel.cpp
             hle/kernel/mutex.cpp
+            hle/kernel/process.cpp
             hle/kernel/semaphore.cpp
             hle/kernel/session.cpp
             hle/kernel/shared_memory.cpp
@@ -139,6 +140,7 @@ set(HEADERS
             hle/kernel/event.h
             hle/kernel/kernel.h
             hle/kernel/mutex.h
+            hle/kernel/process.h
             hle/kernel/semaphore.h
             hle/kernel/session.h
             hle/kernel/shared_memory.h