Fix the block comments parsing

[DiddiLeija]

With this change, the user could write code at the same line than the commentary block (just before it begins or at the same line it ends).

I'll explain it with a simple example. I want the users to write code like this:

openfile("C:/Users/Administrador/Documents/hello.txt"); /* A comment starts here.
It must end here */ pyrun('print("Hello world")');

Before this fix, DiddiParser dropped both lines (and ignored the openfile() and the pyrun). Now, I want to fix that.

[DiddiLeija]

But, I've been thinking about... maybe we are forgetting a case like this:

openfile('C:/Program Files/sample.py'); /* a block comment */
subprocess_run('pip check');

Here, as diddiparser.parser checks the block comments, it won't find where the block ends. So it will ignore the subprocess_run call. I will fix that.

[DiddiLeija]

NOTE: We are not saying that this is the recommended way to comment on DiddiScript. But if someone wants to do it, that's fine for me. Maybe later I could merge.