Provide standalone replication-manager-cli top command

[svaroqui]

This command should provide equivalent of innotop in perl

To make it standalone we will start a cluster monitor class that listen on localhost and write it's own dataset into directory ./replication-mangager/data of running user.

A cluster configuration file will be produce in file ./replication-mangager/config.toml by default a single server is added into the cluster with current user no password or with user input if any parameters --host --user --password

The client will talk with the new api v3 and can also connect to an existing monitor using parameter monitor-url (default localhost)

From the API processlist of each cluster server can send processlist , explain of a query, variables, status, etc We could improve the API to return array of per server object when query on a full cluster instead of a single server

[svaroqui]

This is motivated by the current issues from mariadb packaging with dependences on perl packages and many different repo that provide mytop possibly a symlink mariadb-top and mariadb-config can be made for foundation. to our tools via a contribution