feat: make projects as a lib

scie-onig/Cargo.toml

 [package]
-name = "scie-onig"
+name = "scie_onig"
 version = "0.1.0"
 authors = ["Phodal Huang <h@phodal.com>"]
 edition = "2018"
@@ -7,3 +7,4 @@ edition = "2018"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+onig_sys = "69.5.1"

scie-onig/src/lib.rs

-fn main() {
-    println!("Hello, world!");
-}
+pub mod scie_onig;
\ No newline at end of file

scie-onig/src/scie_onig.rs

+pub struct ScieOnig {
+
+}
+
+impl ScieOnig {
+    pub fn create_onig_scanner(sources: Vec<String>) {
+
+    }
+}
+