Vendor dependencies for 0.3.0 release

vendor/bevy_text/src/error.rs

@@ -0,0 +1,17 @@
+use cosmic_text::CacheKey;
+use thiserror::Error;
+
+#[derive(Debug, PartialEq, Eq, Error)]
+/// Errors related to the textsystem
+pub enum TextError {
+    /// Font was not found, this could be that the font has not yet been loaded, or
+    /// that the font failed to load for some other reason
+    #[error("font not found")]
+    NoSuchFont,
+    /// Failed to add glyph to a newly created atlas for some reason
+    #[error("failed to add glyph to newly-created atlas {0:?}")]
+    FailedToAddGlyph(u16),
+    /// Failed to get scaled glyph image for cache key
+    #[error("failed to get scaled glyph image for cache key: {0:?}")]
+    FailedToGetGlyphImage(CacheKey),
+}