fix(deps): add babel-preset to core dependencies (#782)

* Run `npm install`

* Add "@svgr/babel-preset" to "@svgr/core" dependencies

Author: emlai

package-lock.json

@@ -38,6 +38,7 @@
     "prepublishOnly": "npm run reset && npm run build"
   },
   "dependencies": {
+    "@svgr/babel-preset": "^6.3.1",
     "@svgr/plugin-jsx": "^6.3.1",
     "camelcase": "^6.2.0",
     "cosmiconfig": "^7.0.1"