fix(dism): reload imaging session when needed

[lippertmarkus]

When DISM API returns DISMAPI_S_RELOAD_IMAGE_SESSION_REQUIRED (0x00000001) the session should automatically be reloaded. I looked at how the .NET library handles this, and have oriented the code to it:
https://github.com/jeffkl/ManagedDism/blob/main/src/Microsoft.Dism/DismUtilities.cs#L304-L315
with the reload just closing the old and opening a new session without calling DismInitialize again: https://github.com/jeffkl/ManagedDism/blob/main/src/Microsoft.Dism/DismSession.cs#L57-L72

To support this here, I needed to extend the session struct and also change the Handle to a pointer so that the call defer dismSession.Close() on the caller side doesn't close the initial handle again (already closed if a session reload happend) but instead closes the new handle (the new one created by the reload).

This fixes #459 and it now works on Windows Server 2019/2022 and also Windows 10.

cc: @ItsMattL

[lippertmarkus]

signed the CLA, please re-run CI

[lippertmarkus]

@ItsMattL what do you think? :)

[TsekNet]

Just wanted to jump on this thread to keep you updated.

@ItsMattL has begun reworking our internal automation to make it such that we can accept PRs again for this repo. #470 as an example.

@ItsMattL is also out until the new year, so I wouldn't expect movement until then at the very least.

[lippertmarkus]

Understood, thanks for the update!
Wishing you both a calm Christmas and new year.

[ItsMattL]

thanks for this!