* Support per-call authentication and JsonNullable in client request bodies
Extensions
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Since vertx is an asynchronous/reactive toolkit usage of mutable fields
of `ApiClient` to store authentication prohibits delegation of
authentication from incoming call without recreating the client
everytime (which is prohibitively expensive due to instantiation of objectmapper).
This commit adds a per call authentication override which takes precedence
over the mutable fields so a single client can be safely reused. To ease
usage a simple builder-style auxiliary `AuthInfo` object is provided
providing methods for each specified authentication.
A new configuration option for `ApiClient` has been added: `timeout`. It gets
applied as timeout for the vertx http request.
Fixes
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Request bodies have been wrongly serialized using vert.x built-in
objectmapper instead of the embedded instance thus usage of beans with
`JsonNullable` wrapped fields in request bodies led to bad requests.
* update vertx samples
* Client Java Vertx: Add url encode for path parameters.
* update vertx samples