HM-30. Добавлен класс Компонент, поправлены api, внедрен тестовый ком… (#5)

package.json

@@ -20,7 +20,10 @@
   "homepage": "https://github.com/vigdorov/storage-service-ui#readme",
   "devDependencies": {
     "@babel/core": "^7.10.4",
+    "@babel/plugin-proposal-class-properties": "^7.10.4",
+    "@babel/plugin-syntax-class-properties": "^7.10.4",
     "@babel/preset-env": "^7.10.4",
+    "babel-eslint": "^10.1.0",
     "babel-loader": "^8.1.0",
     "clean-webpack-plugin": "^3.0.0",
     "css-loader": "^3.6.0",
@@ -28,6 +31,7 @@
     "file-loader": "^6.0.0",
     "html-webpack-plugin": "^4.3.0",
     "image-webpack-loader": "^6.0.0",
+    "jsdoc": "^3.6.4",
     "mini-css-extract-plugin": "^0.9.0",
     "url-loader": "^4.1.0",
     "webpack": "^4.43.0",