Bump typescript from 3.1.3 to 3.4.5 (#926)

Bump typescript from 3.1.3 to 3.4.5

package.json

@@ -45,7 +45,7 @@
     "tslint-config-standard": "^8.0.1",
     "tslint-eslint-rules": "^5.4.0",
     "typedoc": "^0.14.2",
-    "typescript": "^3.1.3",
+    "typescript": "^3.4.5",
     "url-loader": "^1.1.1",
     "val-loader": "0.5.0",
     "webpack": "^4.32.2",

yarn.lock

@@ -6449,9 +6449,10 @@ typescript@3.2.x:
   version "3.2.4"
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.2.4.tgz#c585cb952912263d915b462726ce244ba510ef3d"
 
-typescript@^3.1.3:
-  version "3.1.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.1.3.tgz#01b70247a6d3c2467f70c45795ef5ea18ce191d5"
+typescript@^3.4.5:
+  version "3.4.5"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.4.5.tgz#2d2618d10bb566572b8d7aad5180d84257d70a99"
+  integrity sha512-YycBxUb49UUhdNMU5aJ7z5Ej2XGmaIBL0x34vZ82fn3hGvD+bgrMrVDpatgz2f7YxUMJxMkbWxJZeAvDxVe7Vw==
 
 uglify-js@3.4.x:
   version "3.4.7"