feat(quickjs): add quickjs

from: https://crates.io/crates/quick-js

quickjs/external/quickjs-rs/Cargo.toml

@@ -0,0 +1,32 @@
+[package]
+edition = "2018"
+name = "quick-js"
+description = "QuickJS Javascript engine wrapper"
+version = "0.3.5-alpha.0"
+readme = "README.md"
+documentation = "https://docs.rs/quick-js"
+repository = "https://github.com/theduke/quickjs-rs"
+license = "MIT"
+authors = ["Christoph Herzog <chris@theduke.at>"]
+keywords = ["quickjs", "javascript", "js", "engine", "interpreter"]
+
+[package.metadata.docs.rs]
+features = [ "chrono", "bigint", "log" ]
+
+[features]
+patched = ["libquickjs-sys/patched"]
+bigint = ["num-bigint", "num-traits", "libquickjs-sys/patched"]
+
+[dependencies]
+libquickjs-sys = { version = "> 0.3.0, < 0.8.0", path = "./libquickjs-sys" }
+chrono = { version = "0.4.7", optional = true }
+num-bigint = { version = "0.2.2", optional = true }
+num-traits = { version = "0.2.0", optional = true }
+log = { version = "0.4.8", optional = true }
+once_cell = "1.2.0"
+
+[workspace]
+members = [
+    "libquickjs-sys",
+]
+