Print quotes with ' rather than Expr.apply

[nicolasstucki]

Also add coloring for clearer visualization of the code

[allanrenucci]

This will not work for untyped tree (e.g. -Xprint:parser)

[nicolasstucki]

It currently only works for untyped tree as those are still Quote trees. That is I added the special case for typed quotes (i.e. calls to scala.quoted.{Expr, Type}.apply).

https://github.com/lampepfl/dotty/blob/8d8c03fc7cf0d4b58d6a59dcb9a7a7ac1c635f83/compiler/src/dotty/tools/dotc/printing/RefinedPrinter.scala#L565-L566

I will add coloring to the untyped ones to make them look the same.

Seems good now the check is added