[VMM] vmm_free implementation part 1

- Make sure all paremeters are correctly passed to the vmm_free - implement error checking (erroneous flags/address etc) - Make sure to identify the correct vmm (either kernel or task) - Update data structures with required fields. Implementation details about vmm_free workflow: https://codeberg.org/dreamos82/DreamOs64/src/branch/master/docs/kernel/MemoryManagement.md#freeing