add necessary dependencies

package.json

@@ -24,7 +24,9 @@
   },
   "dependencies": {
     "ember-cli-babel": "^7.19.0",
-    "ember-cli-htmlbars": "^4.3.1"
+    "ember-cli-htmlbars": "^4.3.1",
+    "ember-validators": "^2.0.0",
+    "macro-decorators": "^0.1.2"
   },
   "devDependencies": {
     "@ember/optional-features": "^1.3.0",

yarn.lock

@@ -4223,7 +4223,7 @@ ember-cli-babel-plugin-helpers@^1.0.0, ember-cli-babel-plugin-helpers@^1.1.0:
   resolved "https://registry.yarnpkg.com/ember-cli-babel-plugin-helpers/-/ember-cli-babel-plugin-helpers-1.1.0.tgz#de3baedd093163b6c2461f95964888c1676325ac"
   integrity sha512-Zr4my8Xn+CzO0gIuFNXji0eTRml5AxZUTDQz/wsNJ5AJAtyFWCY4QtKdoELNNbiCVGt1lq5yLiwTm4scGKu6xA==
 
-ember-cli-babel@^6.0.0-beta.4, ember-cli-babel@^6.16.0, ember-cli-babel@^6.6.0, ember-cli-babel@^6.8.1:
+ember-cli-babel@^6.0.0-beta.4, ember-cli-babel@^6.16.0, ember-cli-babel@^6.6.0, ember-cli-babel@^6.8.1, ember-cli-babel@^6.9.2:
   version "6.18.0"
   resolved "https://registry.yarnpkg.com/ember-cli-babel/-/ember-cli-babel-6.18.0.tgz#3f6435fd275172edeff2b634ee7b29ce74318957"
   integrity sha512-7ceC8joNYxY2wES16iIBlbPSxwKDBhYwC8drU3ZEvuPDMwVv1KzxCNu1fvxyFEBWhwaRNTUxSCsEVoTd9nosGA==
@@ -4601,6 +4601,13 @@ ember-qunit@^4.6.0:
     ember-cli-test-loader "^2.2.0"
     qunit "^2.9.3"
 
+ember-require-module@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/ember-require-module/-/ember-require-module-0.3.0.tgz#65aff7908b5b846467e4526594d33cfe0c23456b"
+  integrity sha512-rYN4YoWbR9VlJISSmx0ZcYZOgMcXZLGR7kdvp3zDerjIvYmHm/3p+K56fEAYmJILA6W4F+cBe41Tq2HuQAZizA==
+  dependencies:
+    ember-cli-babel "^6.9.2"
+
 ember-resolver@^8.0.0:
   version "8.0.0"
   resolved "https://registry.yarnpkg.com/ember-resolver/-/ember-resolver-8.0.0.tgz#cc48682c1e2f5d208499b1ecdcac1e43839683bd"
@@ -4740,6 +4747,14 @@ ember-try@^1.4.0:
     rsvp "^4.7.0"
     walk-sync "^1.1.3"
 
+ember-validators@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/ember-validators/-/ember-validators-2.0.0.tgz#4100e17feb9c3a6cf4072732010697bbd674f8cb"
+  integrity sha512-OhXGN2UbFQY+lhkWOdW347NZsIWGj/fpTJbOfNxjyMQW/c3fvPEIvrhlvWf1JwHGKQTJDHpMQJgA/Luq39GDgQ==
+  dependencies:
+    ember-cli-babel "^6.9.2"
+    ember-require-module "^0.3.0"
+
 [email protected]:
   version "0.0.2"
   resolved "https://registry.yarnpkg.com/emit-function/-/emit-function-0.0.2.tgz#e3a50b3d61be1bf8ca88b924bf713157a5bec124"
@@ -7247,6 +7262,11 @@ lru-cache@^5.1.1:
   dependencies:
     yallist "^3.0.2"
 
+macro-decorators@^0.1.2:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/macro-decorators/-/macro-decorators-0.1.2.tgz#1d5cf1276d343371040af192901947f2a0af03c1"
+  integrity sha512-BV5XPmCm9kPSMtgfZiv0vTjOooe5pTIPIVkdoqbC49H1B7z22KB39H50R2ZNclZDQlmVyviLozRatKnOYZkwzg==
+
 make-dir@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/make-dir/-/make-dir-2.1.0.tgz#5f0310e18b8be898cc07009295a30ae41e91e6f5"