Expose incremental utf8 decoding APIs

Author: rnjtranjan

core/src/Streamly/Unicode/Stream.hs

@@ -75,18 +75,25 @@
 --
 module Streamly.Unicode.Stream
     (
+      DecodeState
+    , DecodeError(..)
+    , CodePoint
+    
     -- * Construction (Decoding)
-      decodeLatin1
+    , decodeLatin1
     , decodeUtf8
     , decodeUtf8'
     , decodeUtf8Chunks
+    , decodeUtf8Either
+    , resumeDecodeUtf8Either
 
     -- * Elimination (Encoding)
     , encodeLatin1
     , encodeLatin1'
     , encodeUtf8
     , encodeUtf8'
     , encodeStrings
+
     {-
     -- * Operations on character strings
     , strip -- (dropAround isSpace)