Allow for many find and replaces

[oriongonza]

#133

[oriongonza]

Done. Caveats:
2 extra vector allocations at the start (should be completely negligible)

1. changed public API of Replacer::new()
2. There's probably a more efficient way of achieving what replace does
3. No colors when there are several patterns.
4. The regex flags are applied to all patterns

[CosmicHorrorDev]

I'll be looking at these after I get this pending release out. Just wanted to give a heads up that I'm not ignoring all of these

[oriongonza]

What's left for the release? The release issue tracker #203 is as complete as it gets.

Can I help with anything?

[oriongonza]

This will be a hacky solution up until the new modular architecture is created and merged. I don't know if it's worth it to release it for 1.1 since the API for it will likely change

[oriongonza]

This doesn't make much sense after #282