Add function to just return string output instead of echoing it.

[myleshyson]

TL;DR: Would you be ok with an added function, maybe something like asString or something that just returns the final formatted string instead of echoing it (like render)?

I created a function similar to Laravel prompts task in CraftCms that shows either a check or an x depending on whether the task completed or not. However what I ran into was needing to know how many actual lines are output to the terminal, so I could move the cursor up that many lines and replace the text with an appended checkmark.

I ended up just directly using the HtmlRender class like so to accomplish what I needed to.

$html = (new HtmlRenderer())->parse('<div>hi!</div>')->toString();
// count the lines
// replace the line with an appended check or x.

It's marked as internal and crossed out in my ide however. Not a huge deal, but I think just having a function similar to render that just does the above would be a nice QoL improvement. So instead if people needed the raw string for whatever reason they could do

$string = asString('<div>hi!</div>');

instead of having to code dive.

I don't mind doing the pull request if you're ok with this.

[xiCO2k]

Hey @myleshyson thanks for that, I would love to review your PR, and probably the name of the function should be parse.