ObjectPool now uses ConcurrentBag instead if ConcurrentStack, as it has a smaller memory footprint.
Fix compiler warnings related to Audio Command Pools.
Switch gpu command initialization to use pointers, that way skipping the allocation of the command which is unnecessary.
Skip byte array allocation in Ioctl2/3 if it isn't needed (if the source data is all continuous we don't need to copy it to make it continuous).
* refactor: replace usage of ByteMemoryPool with MemoryOwner<byte>
* refactor: delete unused ByteMemoryPool and ByteMemoryPool.ByteMemoryPoolBuffer types
* refactor: change IMemoryOwner<byte> return types to MemoryOwner<byte>
* fix(perf): get span via `MemoryOwner<T>.Span` directly instead of `MemoryOwner<T>.Memory.Span`
* fix(perf): get span via MemoryOwner<T>.Span directly instead of `MemoryOwner<T>.Memory.Span`
* fix(perf): get span via MemoryOwner<T>.Span directly instead of `MemoryOwner<T>.Memory.Span`
* - add new abstract class `VirtualMemoryManagerBase`
- rename `MemoryManagerBase` to `VirtualMemoryManagerRefCountedBase` and derive from `VirtualMemoryManagerBase`
- change `AddressSpaceManager`, `HvMemoryManager`, `MemoryManager`, and `MemoryManagerHostMapped` to implement abstract members and use the inherited `void VirtualMemoryManagerBase.Read(TVirtual va, Span<byte> data)` implementation.
* move property `AddressSpaceSize` up by the other properties