Address memory management in hashlib

[Xor-el]

No description provided.

[HermanSchoenfeld]

I think you should not link to Hydrogen and simply duplicate the code you need. HashLib4CSharp is an independent library and the code should be maintained that way. I do not wish to have a fork of HashLib4CSharp and prefer to have an active mirror of it. Probably later we'll just use a Nuget package to it.

Also, IHash being an IDisposable is good but now all usage of it must be updated to ensure instances are disposed. As discussed, a simple approach to this cumbersome task is to replace all usage

IHash varName = SomeWayToGetInstanceOfIHash();

to

using IHash varName = SomeWayToGetInstanceOfIHash();

[Xor-el]

Duly noted.
will implement as discussed, thanks.

[HermanSchoenfeld]

Hi Ugo, are you able to get this PR compiling? Apologies for not integrating it before.

[Xor-el]

Hello Herman, I just merged the latest master to this branch.
CI pipeline is currently running.
please do note that the current master build has a test that is failing in the pipeline, maybe you can look into this?