runtime: free_memory() total_memory() return Result types

[kbkpbot]

Fix issue #24646

Fix for macos: free host port by using mach_port_deallocate()

[huly-for-github]

Connected to Huly®: V_0.6-23010

[lcheylus]

Doc/note for free_memory in vlib/runtime/runtime_nix.c.v must be updated with the new errors.

[lcheylus]

To have the same prototype on every system, total_memory and free_memory functions have to return Result type (!usize) on Windows too => vlib/runtime/runtime_windows.c.v.

[kbkpbot]

To have the same prototype on every system, total_memory and free_memory functions have to return Result type (!usize) on Windows too => vlib/runtime/runtime_windows.c.v.

Already done.

[spytheman]

Excellent work.