Vendor things

third-party/vendor/text_lines/README.md

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+# text_lines
+
+[![](https://img.shields.io/crates/v/text_lines.svg)](https://crates.io/crates/text_lines)
+
+Information about lines of text in a string.
+
+```rust
+use text_lines::TextLines;
+
+let text = "Line 1\n\tLine 2";
+let info = TextLines::new(&text); // defaults to an indent width of 4
+
+let line_index = info.line_index(9); // 1
+let line_and_column = info.line_and_column_index(9); // 1, 2
+let byte_index = info.byte_index(&line_and_column); // 9
+let line_and_column_display = info.line_and_column_display(9); // 2, 6
+
+let info = TextLines::with_indent_width(&text, 2);
+let line_and_column_display = info.line_and_column_display(9); // 2, 4
+```