[refactor] collect stuff into new mod paint

emigui/src/widgets/slider.rs

@@ -1,6 +1,6 @@
 use std::ops::RangeInclusive;
 
-use crate::{widgets::Label, *};
+use crate::{paint::*, widgets::Label, *};
 
 /// Combined into one function (rather than two) to make it easier
 /// for the borrow checker.

emigui/src/widgets/text_edit.rs

@@ -1,4 +1,4 @@
-use crate::*;
+use crate::{paint::*, *};
 
 #[derive(Clone, Copy, Debug, Default, serde_derive::Deserialize, serde_derive::Serialize)]
 pub(crate) struct State {