adeiu, MissingH

Removed dependency on MissingH, instead depending on the split
library.

After laying groundwork for this since 2015, it
was mostly straightforward. Added Utility.Tuple and
Utility.Split. Eyeballed System.Path.WildMatch while implementing
the same thing.

Since MissingH's progress meter display was being used, I re-implemented
my own. Bonus: Now progress is displayed for transfers of files of
unknown size.

This commit was sponsored by Shane-o on Patreon.

Utility/Misc.hs

@@ -45,14 +45,6 @@ separate c l = unbreak $ break c l
 		| null b = r
 		| otherwise = (a, tail b)
 
-{- Split on a single character. This is over twice as fast as using
- - Data.List.Utils.split on a list of length 1, while producing
- - identical results. -}
-splitc :: Char -> String -> [String]
-splitc c s = case break (== c) s of
-	(i, _c:rest) -> i : splitc c rest
-	(i, []) -> i : []
-
 {- Breaks out the first line. -}
 firstLine :: String -> String
 firstLine = takeWhile (/= '\n')