add w19 expanded data test

data/linear/wilkinson-developped-19/all/1.json

+{
+  "system": [
+    "(1.57065688229750 + 2.30061020869121*I)*t*x_0^19 + (-190.000000000000)*t*x_0^18 + (-0.570656882297500 - 2.30061020869121*I)*x_0^19 + 16815.0000000000*t*x_0^17 + (-920550.000000000)*t*x_0^16 + 3.49169460000000e7*t*x_0^15 + (-9.73941900000000e8)*t*x_0^14 + 2.06929336300000e10*t*x_0^13 + (-3.42252511900000e11)*t*x_0^12 + 4.46522675738100e12*t*x_0^11 + (-4.62806477519100e13)*t*x_0^10 + 3.81922055502195e14*t*x_0^9 + (-2.50385875546755e15)*t*x_0^8 + 1.29536369899439e16*t*x_0^7 + (-5.22609033625127e16)*t*x_0^6 + 1.61429736530119e17*t*x_0^5 + (-3.71384787345228e17)*t*x_0^4 + 6.10116075740492e17*t*x_0^3 + (-6.68609730341153e17)*t*x_0^2 + 4.31565146817638e17*t*x_0 + (-1.21645100408832e17 - 2.30061020869121*I)*t + 0.570656882297500 + 2.30061020869121*I"
+  ],
+  "variables": [
+    "x_0"
+  ],
+  "parameters": [
+    "t"
+  ],
+  "path": [
+    [
+      "0.0"
+    ],
+    [
+      "1.0"
+    ]
+  ],
+  "fiber": [
+    [
+      "1.00000000000000"
+    ],
+    [
+      "0.945817241700635 + 0.324699469204683*I"
+    ],
+    [
+      "0.789140509396394 + 0.614212712689668*I"
+    ],
+    [
+      "0.546948158122427 + 0.837166478262529*I"
+    ],
+    [
+      "0.245485487140799 + 0.969400265939330*I"
+    ],
+    [
+      "-0.0825793454723323 + 0.996584493006670*I"
+    ],
+    [
+      "-0.401695424652969 + 0.915773326655058*I"
+    ],
+    [
+      "-0.677281571625741 + 0.735723910673132*I"
+    ],
+    [
+      "-0.879473751206489 + 0.475947393037074*I"
+    ],
+    [
+      "-0.986361303402722 + 0.164594590280734*I"
+    ],
+    [
+      "-0.986361303402722 - 0.164594590280734*I"
+    ],
+    [
+      "-0.879473751206489 - 0.475947393037074*I"
+    ],
+    [
+      "-0.677281571625741 - 0.735723910673131*I"
+    ],
+    [
+      "-0.401695424652970 - 0.915773326655057*I"
+    ],
+    [
+      "-0.0825793454723327 - 0.996584493006670*I"
+    ],
+    [
+      "0.245485487140799 - 0.969400265939330*I"
+    ],
+    [
+      "0.546948158122427 - 0.837166478262529*I"
+    ],
+    [
+      "0.789140509396393 - 0.614212712689669*I"
+    ],
+    [
+      "0.945817241700635 - 0.324699469204684*I"
+    ]
+  ]
+}
\ No newline at end of file