KCL: Convert x/y lines to use keyword arguments (#5615)

Previously, `xLine`, `xLineTo`, `yLine` and `yLineTo` used positional arguments. Now:

- `xLineTo` and `yLineTo` have been removed
- `xLine` and `yLine` both use keyword arguments:
  - `length`, optional (i.e. a relative distance along the X or Y axis)
  - `endAbsolute` optional (i.e. an absolute point along the X or Y axis)
  - `tag` optional
- Exactly one of `length` or `endAbsolute` must be given. Not both, not neither.

For example:

```
// Old way
|> xLine(6.04, %)
|> yLineTo(20, %, $base)

// New way
|> xLine(length = 6.04)
|> yLine(endAbsolute = 20, tag = $base)
```

This also improves some of the general-purpose keyword arguments code in modeling app's TS codebase.

rust/kcl-lib/tests/ssi_pattern/input.kcl

@@ -1,9 +1,9 @@
 sketch001 = startSketchOn('XZ')
   |> startProfileAt([-4.35, -12.26], %)
-  |> yLine(10.2, %)
+  |> yLine(length = 10.2)
   |> line(end = [0.54, -0.03])
   |> tangentialArcTo([20.4, 14.61], %)
-  |> yLine(-26.76, %)
+  |> yLine(length = -26.76)
   |> line(endAbsolute = [profileStartX(%), profileStartY(%)], tag = $seg01)
   |> close()