Add compiler exports to index.ts

Author: 1001mei

src/index.ts

@@ -1,4 +1,5 @@
 import * as JVM from './jvm'
 import { typeCheck } from './types'
+import { compile, compileFromSource} from './compiler'
 
-export { JVM, typeCheck }
+export { JVM, typeCheck, compile, compileFromSource }