Embed vertx into spring

The spring based webapp acts as a vertx client, that uses the vertx event bus to request a list of all available algorithms.

Moreover the module algorithms-vertx-server was renamed to -disoatcher because I want to implement the various sort algorithms within a separate vertx module.
Added initial sort module

Created a module that will hold all sort algorithms. Right now it registers exactly one sort algorithm, BubbleSort, at the algorithms dispatcher. Both modules are configured to run within a cluster.