Change Harvester CLI's binary name to avoid conflicting with any upstream harvester binaries

[belgaied2]

Problem statement

Harvester CLI is a CLI tool to control Harvester HCI's clusters remotely. The upstream project might build binaries called harvester, therefore, it is a bad idea to use harvester as a binary filename for Harvester CLI.

Suggested replacement names

A nice suggestion that I personally like is to use the suffix ctl like kubectl. A CLI tool might also benefit from a shorter name like hrvctl or hvctl.

HELP WANTED: Please contribute additional suggestions if you see fit.

[ne0YT]

I think harvester-cli is already quite good otherwise I would vote for hvctl if it needs to be short. But since tabbing is a thing and I use a lot of different tools harvester-cli makes it easier to remember.