Added file name + line number to symbols and use it for reasonable error handling now, added a version number to the compiled grammer

tests/error_test.krak

@@ -0,0 +1,13 @@
+import mem:*
+import vector:*
+
+
+fun main():int {
+    var a = null<vector<bad>>()
+    /*doesnt_exist(2)*/
+    /*var b: doesnt_exist*/
+    return -1 
+}
+
+
+