Adds deprecator (#7303)

* adds deprecator

* un-fit

* added changelog entry

* some fixes

* un-fit

* removed deprecation definition

* changed deprecation log syntax according to Nodejs

src/Deprecator/Deprecations.js

@@ -0,0 +1,14 @@
+/**
+ * The deprecations.
+ *
+ * Add deprecations to the array using the following keys:
+ * - `optionKey`: The option key incl. its path, e.g. `security.enableCheck`.
+ * - `envKey`: The environment key, e.g. `PARSE_SERVER_SECURITY`.
+ * - `changeNewKey`: Set the new key name if the current key will be replaced,
+ * or set to an empty string if the current key will be removed without replacement.
+ * - `changeNewDefault`: Set the new default value if the key's default value
+ * will change in a future version.
+ *
+ * If there are no deprecations this must return an empty array anyway.
+ */
+module.exports = [];