updated compiler to support multiple frontends and backends

compiler/src/frontend/dsc/semantic_analyser.rs

@@ -0,0 +1,13 @@
+use crate::model::{CompilerError, Program};
+
+pub struct Analyser;
+
+impl Analyser {
+    pub fn new() -> Self {
+        Self
+    }
+
+    pub fn analyse(&self, _ast: Program) -> Result<(), CompilerError> {
+        Ok(())
+    }
+}