Kernel: Rework RamInode API

RamInode is now a general RamInode with no data. RamFileInode is now
a inode for regular files. This is much cleaner and more intuitive
since there is no reason for most non-regular inodes to hold data
Vector.

kernel/kernel/Device/Device.cpp

@@ -5,7 +5,7 @@ namespace Kernel
 {
 
 	Device::Device(mode_t mode, uid_t uid, gid_t gid)
-		: RamInode(DevFileSystem::get(), mode, uid, gid)
+		: RamInode(DevFileSystem::get(), FullInodeInfo(DevFileSystem::get(), mode, uid, gid))
 	{ }
 
 }