New simpler rounding function and new SHA256 for the output

[gcarreno]

Hey Y'All,

After a bit of talking to a prospect entry person, I've come to the realisation that we had a very complicated rounding implementation.

The conclusion of that talk and further code is now the new official rounding code.

I've also altered the README.md file to include the code and the new SHA256 hash of the output, alongside an archived file containing the new baseline output.

Cheers,
Gus

[synopse]

I have implemented it for the mormot entry, and it seems to generate the expected output.

As we already discussed, I also prefer this new ceil() method to the previous implementation, which was based on the weird and buggy Java Math.round() function.

[gcarreno]

Hey Arnaud,

Indeed I agree.
When I looked at the elegance of Result:= (Ceil(x * 10)) / 10, a true one liner, it just made absolute sense.
Then, looking at the test results that they provided, it all clicked 😄

Cheers,
Gus