added few empty files

src/compiler.rs

@@ -0,0 +1 @@
+

src/lib.rs

@@ -1,6 +1,8 @@
+pub mod compiler;
 pub mod error;
 pub mod lexer;
 pub mod list;
 pub mod parser;
 pub mod repl;
 pub mod value;
+pub mod vm;

src/vm.rs

@@ -0,0 +1 @@
+