[Feature] Add "after first hit" blocking mode

[deeebug]

Feel free to change or request anything for the merge.

[Grouflon]

Hey, I finally got the time to test your branch, thanks again for contributing :).
I don't know if I got it correctly, but I think that the behavior is not really what I had in mind with this feature.
For me it should block the first blockstring, and as soon as the blockstring ends, it should stop blocking until the next hit or some time pass without anything happening.
If I understand the code correctly, what you wrote will make the dummy block until 90 frames pass with the dummy not having any hit or block.
Can you tell me a little bit more about what you think ?

[deeebug]

Well, I intended this mode to be where you could test true combo strings. First hit would be let in and anything following that shouldn't work until 90 frames. Of course, if it's a true combo string the consecutive hits would work, otherwise anything will be blocked. Hence, "after first hit".

By the way, didn't notice that you had an issue up for a block mode with a similar name until a PR was sent. But, isn't this what you wrote in that issue? Or maybe it's not working that way, somehow?

[alepaez]

Hello! :D

I have tested the feature and works fine, but I think this code could be more clear and DRY.

Is this PR going to be merged? I also have a woking version that can be used :D