phash updates!

Cargo.lock

@@ -1,6 +1,6 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 3
+version = 4
 
 [[package]]
 name = "ab_glyph"
@@ -767,7 +767,7 @@ dependencies = [
 
 [[package]]
 name = "image_similarity"
-version = "0.1.0"
+version = "0.2.0"
 dependencies = [
  "base64",
  "bktree",
@@ -778,6 +778,7 @@ dependencies = [
  "imageproc",
  "log",
  "plotters",
+ "rayon",
  "rmp-serde",
  "serde",
  "wasm-bindgen",