Text rendering

[sornas]

• TTF
• Draw text to screen location
• Draw text to world location
• Font scaling
• Get string size when drawn

Some nits left to do:

• [ ] World position rendering of text
• [ ] Layering - text is rendered on top of everything
• [ ] Text rotation
• [ ] Rewrite push to be the one-stop-shop for rendering

[sornas]

https://docs.rs/ttf-parser/0.12.0/ttf_parser/

[FredTheDino]

So ttf_parser doesn't have any font rendering. This makes it hard if we want to look at the fonts. I switched to https://docs.rs/rusttype/0.9.2/rusttype/

[FredTheDino]

Used https://crates.io/crates/luminance-glyph because it looked to be the easiest!