Kernel: Introduce the new SysFS

The intention is to add dynamic mechanism for notifying the userspace
about hotplug events. Currently, the DMI (SMBIOS) blobs and ACPI tables
are exposed in the new filesystem.

Kernel/CMakeLists.txt

@@ -30,7 +30,6 @@ set(KERNEL_SOURCES
     CommandLine.cpp
     ConsoleDevice.cpp
     CoreDump.cpp
-    DMI.cpp
     Devices/AsyncDeviceRequest.cpp
     Devices/BlockDevice.cpp
     Devices/CharacterDevice.cpp
@@ -107,6 +106,7 @@ set(KERNEL_SOURCES
     FileSystem/InodeWatcher.cpp
     FileSystem/Plan9FileSystem.cpp
     FileSystem/ProcFS.cpp
+    FileSystem/SysFS.cpp
     FileSystem/TmpFS.cpp
     FileSystem/VirtualFileSystem.cpp
     FutexQueue.cpp
@@ -225,6 +225,7 @@ set(KERNEL_SOURCES
     Syscalls/waitid.cpp
     Syscalls/inode_watcher.cpp
     Syscalls/write.cpp
+    SystemExposed.cpp
     TTY/ConsoleManagement.cpp
     TTY/MasterPTY.cpp
     TTY/PTYMultiplexer.cpp