Improve REPL

[Larsouille25]

Is your feature request related to a problem? Please describe. No, actually not but it's cool.

Describe the solution you'd like when you're in the REPL, you can have mutli line, by pressing enter and when you finished you press ctrl + d or a thing like that.

Additional context Like that ->

Mona v0.1.0-alpha, to exit enter `.quit`
~> func foo(bar) {
 .     var a = bar
 .     a = bar + 2
 .     // etc ..
 . }
${ctrl + d here}
~> 

where ${ctrl + d here} isn't show up but it's when the user press ctrl + d

[Larsouille25]

Instead of point I will use >. Like that ->

Mona v0.1.0-alpha, to exit enter `.quit`
~> func foo(bar) {
 >     var a = bar
 >     a = bar + 2
 >     // etc ..
 > }
${ctrl + n here}
~> 

and the shortcut to finish a line will be ctrl + n

[Larsouille25]

In the final version of the multiline REPL this like that ->

$ mona
Mona v0.1.0-alpha, to exit enter `.quit`
~> func foo(bar) {
 >     var a = bar
 >     a = bar + 2
 >     // etc ..
 > }
 > .eof
~>

Instead of pressing ctrl + d or ctrl + n, you just need to enter .eof to tell the multiline REPL that this is the end.