build: init scie onig modules

Cargo.toml

@@ -14,9 +14,13 @@ path = "scie-grammar"
 [dependencies.scie_scanner]
 path = "scie-scanner"
 
+[dependencies.scie_onig]
+path = "scie-onig"
+
 [workspace]
 members = [
  "scie-grammar",
  "scie-scanner",
- "benchmark"
+ "benchmark",
+ "scie-onig"
 ]

scie-onig/Cargo.toml

+[package]
+name = "scie-onig"
+version = "0.1.0"
+authors = ["Phodal Huang <h@phodal.com>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

scie-onig/src/lib.rs

+fn main() {
+    println!("Hello, world!");
+}