add extraneous modules

Author: Bryan Crotaz

package.json

@@ -45,6 +45,7 @@
     "ember-cli-eslint": "5.1.0",
     "ember-cli-htmlbars": "4.3.1",
     "ember-cli-inject-live-reload": "2.0.2",
+    "ember-cli-is-package-missing": "^1.0.0",
     "ember-cli-qunit": "4.4.0",
     "ember-cli-sri": "2.1.1",
     "ember-cli-uglify": "3.0.0",
@@ -62,6 +63,7 @@
     "loader.js": "4.7.0",
     "mocha": "6.2.2",
     "qunit-dom": "0.9.2",
+    "semver": "^7.3.2",
     "testdouble": "3.16.0"
   },
   "engines": {

yarn.lock

@@ -10578,7 +10578,7 @@ semver@^6.0.0, semver@^6.1.0, semver@^6.1.1, semver@^6.3.0:
   resolved "https://registry.yarnpkg.com/semver/-/semver-6.3.0.tgz#ee0a64c8af5e8ceea67687b133761e1becbd1d3d"
   integrity sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw==
 
-semver@^7.2.1:
+semver@^7.2.1, semver@^7.3.2:
   version "7.3.2"
   resolved "https://registry.yarnpkg.com/semver/-/semver-7.3.2.tgz#604962b052b81ed0786aae84389ffba70ffd3938"
   integrity sha512-OrOb32TeeambH6UrhtShmF7CRDqhL6/5XpPNp2DuRH6+9QLw/orhp72j87v8Qa1ScDkvrrBNpZcDejAirJmfXQ==