Made maxOutput Prop

[BjornTheProgrammer]

I noticed while using react-console-emulator, that the terminal can get very laggy when many high-speed terminal.pushToStdout() occur, and it gets much worse when the terminal output begins to be the length of millions. Implementing a solution using refs would be painful, and I think it would be much more reasonable to add the option for other people to use, as it is only one line of code.

[linuswillner]

Just a few small nits, otherwise good.

(Historical note: This library is indeed probably a potent candidate to have performance problems, given how old some of the code is. It should be rewritten in TypeScript and all that jazz, but time is finite.)

[BjornTheProgrammer]

Sorry for spamming commits, I just kept remembering that I could make things a bit better.

[linuswillner]

No problem, sorry for the delay - I don't really check in on this repo that often. I had one more suggestion but otherwise I think this is good.

[BjornTheProgrammer]

No problem, sorry for the delay - I don't really check in on this repo that often. I had one more suggestion but otherwise I think this is good.

Don't worry about the delay, I know you're busy and that you provided this project in your free time! Thank you for all the work you've put into refining this feature. Appreciate the help!