新增四类连杆统一仿真接口

tests/testdata/fourbar/simulate_rrrr.json

@@ -0,0 +1,17 @@
+{
+  "msg": "fourbar unified simulate RRRR",
+  "req_code": "CASE_FB_UNIFIED_RRRR",
+  "req_from": "wasm_test",
+  "req_cmd": "Cmd_FourBar_Simulate",
+  "req_param": {
+    "mechanismType": "RRRR",
+    "L1": 1.0,
+    "L2": 3.0,
+    "L3": 2.5,
+    "L4": 3.5,
+    "startAngleDeg": 0.0,
+    "endAngleDeg": 180.0,
+    "duration": 1.0,
+    "stepTime": 0.25
+  }
+}