Add TextEdit::password to hide input characters

epaint/src/text/font.rs

@@ -211,6 +211,7 @@ impl Font {
             slf.glyph_info(c);
         }
         slf.glyph_info('°');
+        slf.glyph_info(crate::text::PASSWORD_REPLACEMENT_CHAR); // password replacement character
 
         slf
     }

epaint/src/text/mod.rs

@@ -9,3 +9,6 @@ pub use {
     fonts::{FontDefinitions, FontFamily, Fonts, TextStyle},
     galley::{Galley, Row},
 };
+
+/// Suggested character to use to replace those in password text fields.
+pub const PASSWORD_REPLACEMENT_CHAR: char = '•';