Add isolated native Rime service and MiSans candidate UI

crates/ferese-rime/build.rs

@@ -0,0 +1,13 @@
+fn main() {
+    println!("cargo:rerun-if-changed=src/rime_shim.c");
+    let library = pkg_config::Config::new()
+        .atleast_version("1.8")
+        .probe("rime")
+        .expect("librime development headers are required");
+    let mut build = cc::Build::new();
+    build.file("src/rime_shim.c");
+    for path in library.include_paths {
+        build.include(path);
+    }
+    build.compile("ferese_rime_shim");
+}