Multiline scripts part 2 (#2795)

* Begin allowing comments and multiline scripts.

* clippy

* Finish moving to groups. Test pass

* Keep going

* WIP

* WIP

* BROKEN WIP

* WIP

* WIP

* Fix more tests

* WIP: alias starts working

* Broken WIP

* Broken WIP

* Variables begin to work

* captures start working

* A little better but needs fixed scope

* Shorthand env setting

* Update main merge

* Broken WIP

* WIP

* custom command parsing

* Custom commands start working

* Fix coloring and parsing of block

* Almost there

* Add some tests

* Add more param types

* Bump version

* Fix benchmark

* Fix stuff

docs/commands/to-toml.md

@@ -88,7 +88,7 @@ version = "0.4.6"
 [dependencies.cursive]
 default-features = false
 features = ["pancurses-backend"]
-version = "0.24.1"
+version = "0.24.2"
 
 [dependencies.futures-preview]
 features = ["compat", "io-compat"]