Update bindings to include newer APIs (#250)

- c, cpp
- csharp
- ffi
- go
- Java
- Python
- WASM

`arc` feature is turned on for all bindings
Use pretty string instead of colored string.

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>

src/engine.rs

@@ -240,7 +240,7 @@ impl Engine {
         &self.modules
     }
 
-    /// Evaluate rule(s) at given path.
+    /// Evaluate specified rule(s).
     ///
     /// [`Engine::eval_rule`] is often faster than [`Engine::eval_query`] and should be preferred if
     /// OPA style [`QueryResults`] are not needed.
@@ -280,10 +280,10 @@ impl Engine {
     /// # Ok(())
     /// # }
     /// ```
-    pub fn eval_rule(&mut self, path: String) -> Result<Value> {
+    pub fn eval_rule(&mut self, rule: String) -> Result<Value> {
         self.prepare_for_eval(false)?;
         self.interpreter.clean_internal_evaluation_state();
-        self.interpreter.eval_rule_in_path(path)
+        self.interpreter.eval_rule_in_path(rule)
     }
 
     /// Evaluate a Rego query.

src/lib.rs

@@ -402,7 +402,7 @@ pub mod coverage {
         ///
         /// <img src="https://github.com/microsoft/regorus/blob/main/docs/coverage.png?raw=true">
 
-        pub fn to_colored_string(&self) -> anyhow::Result<String> {
+        pub fn to_string_pretty(&self) -> anyhow::Result<String> {
             let mut s = String::default();
             s.push_str("COVERAGE REPORT:\n");
             for file in self.files.iter() {
@@ -411,7 +411,7 @@ pub mod coverage {
                     continue;
                 }
 
-                s.push_str(&format!("{}:", file.path));
+                s.push_str(&format!("{}:\n", file.path));
                 for (line, code) in file.code.split('\n').enumerate() {
                     let line = line as u32 + 1;
                     if file.not_covered.contains(&line) {