Studio: add Summary dashboard in Server Tab

[lvca]

ArcadeDB has many useful metrics that are hard to read and interpret from Studio as a flat table.

I'd love to provide a new summary tab (enabled by default) made with charts of the most important information you're looking in a DBMS server, such as:

• RAM: used/available + RAM used over time (collect the last X minutes)
• CPU: load + history
• Disk: available space
• Tx/min: number of tx per minute + Tx/min over time (collect the last X minutes)
• HTTP command/min: see above

One good candidate for charts is ApexChart because it's pretty, quite lightweight, and with MIT license (compatible with Apache2).

[lvca]

Work in progress, this is the latest update:

[lvca]

Added req/sec foreach configured command. Not bad.

[gramian]

This looks really beautiful. Works on my machine too.