ignore indentation in imported assembly (#2511)

* ignore indentation in imported assembly

* oop

* Update LAssembler.java

core/src/mindustry/logic/LAssembler.java

@@ -81,6 +81,8 @@ public class LAssembler{
 
             if(index++ > max) break;
 
+            line = line.replace("\t", "").trim();
+            
             try{
                 String[] arr;