Gears DLC (free) (#6835)

* Gears DLC (free)

Using the involuteCircular fn to create a variety of cylindrical gearsets

* Delete public/kcl-samples/gear directory

* Update main.kcl

fixing gear meshing

* new samples

Signed-off-by: Jess Frazelle <github@jessfraz.com>

* add link

Signed-off-by: Jess Frazelle <github@jessfraz.com>

---------

Signed-off-by: Jess Frazelle <github@jessfraz.com>
Co-authored-by: Jess Frazelle <jessfraz@users.noreply.github.com>
Co-authored-by: Jess Frazelle <github@jessfraz.com>

rust/kcl-lib/tests/kcl_samples/herringbone-planetary-gearset/program_memory.snap

@@ -0,0 +1,32 @@
+---
+source: kcl-lib/src/simulation_tests.rs
+description: Variables in memory after executing herringbone-planetary-gearset.kcl
+---
+{
+  "herringboneGear": {
+    "type": "Function",
+    "value": null
+  },
+  "numPlanetGears": {
+    "type": "Number",
+    "value": 4.0,
+    "ty": {
+      "type": "Default",
+      "len": {
+        "type": "Mm"
+      },
+      "angle": {
+        "type": "Degrees"
+      }
+    }
+  },
+  "ringGear": {
+    "type": "Function",
+    "value": null
+  },
+  "seg01": {
+    "type": "TagIdentifier",
+    "type": "TagIdentifier",
+    "value": "seg01"
+  }
+}