Add Windows Terminal

[essenciary]

This is awesome: https://github.com/microsoft/terminal

[heetbeet]

What do you think would be the best approach to add Windows Terminal:

• Bundle it with Juliawin (✗ extra 30mb, ✗ not integrated with host's wt.exe, ✓ will always work)
• Try looking for it on the host computer (✓ integrated with host, ✗ not necessarily available)
• A bit of both (give option to include during installation, but still try to see if host has Windows Terminal otherwise)

And how would you like it integrated into Juliawin:

• Add new launcher julia-terminal.exe that will open a julia instance in windows terminal (and pass the command line arguments). Outside of Windows Terminal, like cmd, this will require a new window to pop-up.
• Change juliawin-prompt.exe to launch through Windows Terminal
• Try some clever magic to integrate this in julia.exe, e.g. do some introspection to see if Julia is launched from a non-terminal-like place (like from windows explorer) and then give it a default terminal of Windows Terminal in stead of cmd. If it is launched from a terminal, ignore Windows Terminal and just open it in the current terminal. This might require some extreme tricks to get just right.

[RoyiAvital]

I'd go with the first option as the main feature of JuliaWin is portability.