Context

Over time, I've found it awkward that the pokemon sprites always face to the left, which is usually the very edge of the terminal.

Additionally, in future I'd like to make it possible to have the speech bubble placed horizontally beside the pokemon, rather than always being vertically above

Changes

This introduces the ability to "flip" any pokemon with -F or --flip

regular	flipped

This is a rough initial implementation that works 100% correctly 🎉, and I'll improve the algorithm over time

1. Tokenise the ANSI chars & escape sequence
2. Reverse them
3. Stitch together into a string

Each reversed line will end with an ANSI reset code, allowing a speech bubble (or anything) to be placed to the right without having to worry about the colours

Each line also ends with padding spaces resulting in a "square", so alignment is also not an issue

In future I'll also update the regular sprites to work like this too