[Feature request] - Add option in config which will comment code along with surrounding lines

[ljudina]

I use this plugin intensively and one thing would be handy for commenting block of codes and that is adding one blank line in comment above and below code selected for commenting. This way i can manipulate easier with a block of comment. It would be ideal to add to config for example following option:

    comment_block = {
        --- Insert empty line in comment block above, set 0 to disable
        above_lines = 1,
        --- Insert empty line in comment block below, set 0 to disable
        below_lines = 1,
    },

So the following code block

if var = true {
    do_someting
}

would be commented like this

/*
if var = true {
    do_someting
}
*/

I believe that this would be appreciated for many developers.

BR