vim: Support ranges in command (#15985)

The most requested feature here is "search and replace in visual mode",
but as a happy side effect we can now support things like :2,12j to join
those lines, and much much more.



Release Notes:

- vim: Added support for range syntax in command
([#9428](https://github.com/zed-industries/zed/issues/9428)).
- vim: Prefill command with `:'<,'>` from visual mode
([#13535](https://github.com/zed-industries/zed/issues/13535)).

crates/vim/test_data/test_command_visual_replace.json

@@ -0,0 +1,12 @@
+{"Put":{"state":"ˇ1\n2\n3\n4\n4\n3\n2\n1"}}
+{"Key":"v"}
+{"Key":"2"}
+{"Key":"j"}
+{"Key":":"}
+{"Key":"s"}
+{"Key":"/"}
+{"Key":"."}
+{"Key":"/"}
+{"Key":"k"}
+{"Key":"enter"}
+{"Get":{"state":"k\nk\nˇk\n4\n4\n3\n2\n1","mode":"Normal"}}