feat(blurhash): port to rust and webassembly

Author: JamieMason

.gitignore

@@ -1,5 +1,9 @@
 .DS_Store
 *.log
 *.log.*
-dist
+*.tgz
+index.d.ts
+index.js
 node_modules
+pkg
+target

Cargo.lock

@@ -0,0 +1,23 @@
+[package]
+name = "blurhash-to-css"
+version = "0.1.0"
+authors = ["Jamie Mason <[email protected]>"]
+edition = "2018"
+
+[lib]
+crate-type = ["cdylib"]
+
+[dependencies.web-sys]
+version = "0.3"
+features = [
+  "console",
+]
+
+[dependencies]
+blurhash = "0.1.1"
+console_error_panic_hook = "0.1.6"
+# this disables rayon in the jpeg decoder, otherwise it breaks in WASM
+image = { version = "0.21.0", default-features = false, features = ["jpeg"] }
+serde = { version = "1.0.123", features = ["derive"] }
+serde_json = "1.0.62"
+wasm-bindgen = "=0.2.61"