Install packages for community page sections

- axios (1)
- date-fns (2)

"axios" is used to fetch all data from official REST APIs for the Nord's
used content platforms.

"date-fns", a modern and more lightweight ES6+ library with tree-shaking
support, will be used project-wide to process any date/time data and
like e.g. blog posts metadata.

References:
  (1) https://github.com/axios/axios
  (2) https://github.com/date-fns/date-fns

GH-115

package.json

@@ -85,7 +85,9 @@
   "dependencies": {
     "arctic-landscape": ">=0.1.0 <1.0.0",
     "arctic-ocean-fractal": ">=0.1.0 <1.0.0",
+    "axios": "0.18.0",
     "body-scroll-lock": "2.6.1",
+    "date-fns": "2.0.0-alpha.27",
     "gatsby": "2.0.75",
     "gatsby-plugin-canonical-urls": "2.0.8",
     "gatsby-plugin-catch-links": "2.0.9",