Add more (neo)vim-specific terminals as possible REPLs

[egolep]

I would like to use something like FloatTerm or ToggleTerm as the target for my REPL instead of plain neovim terminal. This way, I can toggle the REPL without killing it and I can use the whole screen for coding (I usually find myself editing more files at the same time and being able to have my full screen to see them would be very useful) and the REPL can then be as big as I wish without taking too much space. Since ToggleTerm seems way more minimal than FloaTerm it would probably be the best choice, but maybe there is a simpler way to do something native to vim-jukit. I would be glad to help with this myself, but I would probably need some clues on where to start looking in the code.