* rewrite `draw_pixel`

causes overlayed text to appear correctly blended

Breaking Changes:
 - CosmicEdit*Bundle::background_color renamed to fill_color, and takes a new `FillColor(pub Color)`

* fix clippy

* Add text position Left

* Support infinite-line mode

* update readme

* update default mode name

* Add auto-height mode, refactoring

* Clippy

* Add text position Left

* Support infinite-line mode

* update readme

* update default mode name

should allow a user to install and use the plugin without needing their own install of cosmic-text

the violet color changed slightly when i set all the colors to bevy colors >.<

make edit history private; need less re-exports if this is just automagically added

removes CosmicEditor::set_text in favor of a set_text CosmicText component