KCL stdlib: Add atan2 function (#4771)

At Lee's request

docs/kcl/index.md

@@ -30,6 +30,7 @@ layout: manual
 * [`assertLessThan`](kcl/assertLessThan)
 * [`assertLessThanOrEq`](kcl/assertLessThanOrEq)
 * [`atan`](kcl/atan)
+* [`atan2`](kcl/atan2)
 * [`bezierCurve`](kcl/bezierCurve)
 * [`ceil`](kcl/ceil)
 * [`chamfer`](kcl/chamfer)

docs/kcl/std.json

@@ -43523,6 +43523,58 @@
       "sketch001 = startSketchOn('XZ')\n  |> startProfileAt([0, 0], %)\n  |> angledLine({\n       angle = toDegrees(atan(1.25)),\n       length = 20\n     }, %)\n  |> yLineTo(0, %)\n  |> close(%)\n\nextrude001 = extrude(5, sketch001)"
     ]
   },
+  {
+    "name": "atan2",
+    "summary": "Compute the four quadrant arctangent of Y and X (in radians).",
+    "description": "",
+    "tags": [
+      "math"
+    ],
+    "keywordArguments": false,
+    "args": [
+      {
+        "name": "y",
+        "type": "number",
+        "schema": {
+          "$schema": "https://spec.openapis.org/oas/3.0/schema/2019-04-02#/definitions/Schema",
+          "title": "double",
+          "type": "number",
+          "format": "double"
+        },
+        "required": true,
+        "labelRequired": true
+      },
+      {
+        "name": "x",
+        "type": "number",
+        "schema": {
+          "$schema": "https://spec.openapis.org/oas/3.0/schema/2019-04-02#/definitions/Schema",
+          "title": "double",
+          "type": "number",
+          "format": "double"
+        },
+        "required": true,
+        "labelRequired": true
+      }
+    ],
+    "returnValue": {
+      "name": "",
+      "type": "number",
+      "schema": {
+        "$schema": "https://spec.openapis.org/oas/3.0/schema/2019-04-02#/definitions/Schema",
+        "title": "double",
+        "type": "number",
+        "format": "double"
+      },
+      "required": true,
+      "labelRequired": true
+    },
+    "unpublished": false,
+    "deprecated": false,
+    "examples": [
+      "sketch001 = startSketchOn('XZ')\n  |> startProfileAt([0, 0], %)\n  |> angledLine({\n       angle = toDegrees(atan2(1.25, 2)),\n       length = 20\n     }, %)\n  |> yLineTo(0, %)\n  |> close(%)\n\nextrude001 = extrude(5, sketch001)"
+    ]
+  },
   {
     "name": "bezierCurve",
     "summary": "Draw a smooth, continuous, curved line segment from the current origin to",