move sane-topojson to dev-dependencies

Author: archmoj

package-lock.json

@@ -118,7 +118,6 @@
     "regl-splom": "^1.0.14",
     "right-now": "^1.0.0",
     "robust-orientation": "^1.1.3",
-    "sane-topojson": "^4.0.0",
     "strongly-connected-components": "^1.0.1",
     "superscript-text": "^1.0.0",
     "svg-path-sdf": "^1.1.3",
@@ -171,6 +170,7 @@
     "prettysize": "^2.0.0",
     "read-last-lines": "^1.7.2",
     "run-series": "^1.1.9",
+    "sane-topojson": "^4.0.0",
     "through2": "^4.0.2",
     "true-case-path": "^2.2.1",
     "watchify": "^3.11.1"