Add dependency on tfjs-core (#250)

package.json

@@ -6,6 +6,7 @@
     "@oclif/command": "^1.4.20",
     "@oclif/config": "^1.6.17",
     "@oclif/plugin-help": "^1.2.10",
+    "@tensorflow/tfjs-core": "^0.9.1",
     "aphrodite": "^2.1.0",
     "autoprefixer": "7.1.6",
     "babel-core": "6.26.0",

yarn.lock

@@ -50,6 +50,12 @@
     widest-line "^2.0.0"
     wrap-ansi "^3.0.1"
 
+"@tensorflow/tfjs-core@^0.9.1":
+  version "0.9.1"
+  resolved "https://registry.yarnpkg.com/@tensorflow/tfjs-core/-/tfjs-core-0.9.1.tgz#c36763068a5b8ec99c60fd161dc58dd3fb97001b"
+  dependencies:
+    seedrandom "~2.4.3"
+
 "@types/node@*":
   version "9.4.7"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-9.4.7.tgz#57d81cd98719df2c9de118f2d5f3b1120dcd7275"
@@ -6278,6 +6284,10 @@ schema-utils@^0.3.0:
   dependencies:
     ajv "^5.0.0"
 
+seedrandom@~2.4.3:
+  version "2.4.3"
+  resolved "https://registry.yarnpkg.com/seedrandom/-/seedrandom-2.4.3.tgz#2438504dad33917314bff18ac4d794f16d6aaecc"
+
 select-hose@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/select-hose/-/select-hose-2.0.0.tgz#625d8658f865af43ec962bfc376a37359a4994ca"