Add Shift+click on serial monitor toolbar button to open serial plotter

[n-elia]

Feature

The change involves the Serial Monitor button on the toolbar.

• Before: click to open Serial Monitor, shift+click to open Serial Monitor
• After: click to open Serial Monitor, shift+click to open Serial Plotter

Changed files

• app/src/processing/app/EditorToolbar.java

Details

I added the if(isShiftDown) check on the Serial Monitor button, too. In case of Shift being pressed down, editor.handlePlotter() is invoked. I changed the title of the button accordingly to this.
As you can see in the picture, works fine on Windows.

[matthijskooijman]

Thanks for your contribution, sounds like a useful change.

I had a quick look at the code, looks good to me. I haven't tested the code, though.

[n-elia]

Thank you!
It shouldn't create problems because I used the very same fashion of other buttons.
I built arduino-1.8.14-windows and it works fine in every common situation (I'm using it on daily basis to work on multiple projects), it's very handy!
If I can help further, just let me know 👍

[facchinm]

Thank you for the contribution, very handy indeed 😉