Add caret-shape CSS property feature (#3453)

Author: ddbeck

features/caret-shape.yml

@@ -0,0 +1,9 @@
+name: caret-shape
+description: The `caret-shape` CSS property controls the shape of the insertion caret, the symbol that shows where the next character is to be inserted or deleted.
+spec: https://drafts.csswg.org/css-ui-4/#propdef-caret-shape
+compat_features:
+  - css.properties.caret-shape
+  - css.properties.caret-shape.auto
+  - css.properties.caret-shape.bar
+  - css.properties.caret-shape.block
+  - css.properties.caret-shape.underscore

features/caret-shape.yml.dist

@@ -0,0 +1,12 @@
+# Generated from: caret-shape.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: false
+  support: {}
+compat_features:
+  - css.properties.caret-shape
+  - css.properties.caret-shape.auto
+  - css.properties.caret-shape.bar
+  - css.properties.caret-shape.block
+  - css.properties.caret-shape.underscore