libsel4vm docs

See below for usage documentation on various libsel4vm interfaces:

sel4vm/boot.h: An interface for creating, initialising and configuring VM instances
sel4vm/guest_irq_controller.h: Abstractions around initialising a guest VM IRQ controller
sel4vm/guest_memory_helpers.h: Helpers for using the guest memory interface
sel4vm/guest_vcpu_fault.h: Useful methods to query and configure vcpu objects that have faulted during execution
sel4vm/guest_vm.h: Provides base definitions of the guest vm datastructure and primitives to run the VM instance
sel4vm/guest_iospace.h: Enables the registration and management of a guest VM's IO Space
sel4vm/guest_memory.h: Useful abstractions to manage your guest VM's physical address space
sel4vm/guest_ram.h: A set of methods to manage, register, allocate and copy to/from a guest VM's RAM
sel4vm/guest_vm_util.h: A set of utilties to query a guest vm instance

sel4vm/arch/guest_arm_context.h: Provides a set of useful getters and setters on ARM vcpu thread contexts
sel4vm/arch/guest_vm_arch.h: Provide definitions of the arm guest vm datastructures and primitives to configure the VM instance

sel4vm/arch/guest_x86_context.h: Provides a set of useful getters and setters on x86 vcpu thread contexts
sel4vm/arch/guest_vm_arch.h: Provide definitions of the x86 guest vm datastructures and primitives to configure the VM instance
sel4vm/arch/vmcall.h: Methods for registering and managing vmcall instruction handlers
sel4vm/arch/ioports.h: Abstractions for initialising, registering and handling ioport events