Add Typescript support (#92)

* add typescript support
improve entities and services

* restore docs folder

* update docs
small improvements

* wrap class by constructor function

* update dependencies

* rename types

* update package.json

* update package.json
add Persisted

* update package.json
add Persisted

* add Persisted type to public types

* cleanup

* refactor(types): replace Persisted<T> with explicit Saved*Props per entity

* add NodeSecretMode.ts

* delete Constants.js

* update package-lock.json

* Prepare for Release 2.0.0

* Prepare for release 2.0.0

* add WarningLevelSummary interface

* add WarningLevelSummary interface
add Bundle "productNumber" prop

* simplify types

* cleanup
update dependencies

* - dist
- update dependencies

* fix test

* update dependencies

---------

Co-authored-by: Alexey Averikhin <alexey.averikhin@labs64.de>

Author: v-rudkovskiy

.babelrc

@@ -0,0 +1,8 @@
+{
+  "semi": true,
+  "singleQuote": true,
+  "trailingComma": "all",
+  "bracketSpacing": true,
+  "arrowParens": "always",
+  "printWidth": 120
+}