This commit mainly fixes GroupMutex and clock rescaling. In addition, clock rescaling is no longer performed if the CNTFRQ_EL0 of the host device is same as that of the Switch (19.2MHz) which is fairly common on higher end devices.
This commit introduces a new memory model that supports true shared memory with separate permissions for remote and local processes, implements svcQueryMemory and completes svcGetInfo further, adds IPC support with the IpcRequest and IpcResponse classes.
