Add sharp back

Author: Ives van Hoorne

packages/homepage/package.json

@@ -40,6 +40,7 @@
   },
   "devDependencies": {
     "gatsby-cli": "^1.1.20",
+    "gatsby-transformer-sharp": "^1.6.20",
     "prettier": "^1.8.2"
   },
   "browserslist": [

yarn.lock

@@ -6261,6 +6261,15 @@ gatsby-transformer-remark@^1.7.24:
     unist-util-select "^1.5.0"
     unist-util-visit "^1.1.1"
 
+gatsby-transformer-sharp@^1.6.20:
+  version "1.6.20"
+  resolved "https://registry.yarnpkg.com/gatsby-transformer-sharp/-/gatsby-transformer-sharp-1.6.20.tgz#5b152bf9b3f93b937c8f6595372a935ab89ab62d"
+  dependencies:
+    babel-runtime "^6.26.0"
+    bluebird "^3.5.0"
+    fs-extra "^4.0.2"
+    image-size "^0.6.0"
+
 gatsby@^1.9.165:
   version "1.9.202"
   resolved "https://registry.yarnpkg.com/gatsby/-/gatsby-1.9.202.tgz#05bbf7429b860474956c22378c681ff3888139c3"
@@ -7528,6 +7537,10 @@ image-size@^0.5.1:
   version "0.5.5"
   resolved "https://registry.yarnpkg.com/image-size/-/image-size-0.5.5.tgz#09dfd4ab9d20e29eb1c3e80b8990378df9e3cb9c"
 
+image-size@^0.6.0:
+  version "0.6.2"
+  resolved "https://registry.yarnpkg.com/image-size/-/image-size-0.6.2.tgz#8ee316d4298b028b965091b673d5f1537adee5b4"
+
 imagemin-pngquant@^5.0.0:
   version "5.0.1"
   resolved "https://registry.yarnpkg.com/imagemin-pngquant/-/imagemin-pngquant-5.0.1.tgz#d8a329da553afa226b11ce62debe0b7e37b439e6"