Fixed compile error

src/crumpet-engine/entitymanager/entity.cpp

@@ -0,0 +1,9 @@
+#include "entity.h"
+
+Entity::Entity() {
+
+}
+
+Entity::~Entity() {
+    
+}

src/crumpet-engine/entitymanager/entitybase.cpp

@@ -1 +1,9 @@
 #include "entitybase.h"
+
+EntityBase::EntityBase() {
+
+}
+
+EntityBase::~EntityBase() {
+    
+}

src/crumpet-engine/entitymanager/entitymanager.h

@@ -1,15 +1,13 @@
 #pragma once
 
 #include <string>
-#include <iostream>
 #include <map>
-#include <vector>
 
 #include "entity.h"
 
 class EntityManager {
 public:
-    EntityManager():
+    EntityManager();
 
     virtual ~EntityManager();
 private:

src/crumpet-engine/resourcemanager/resourcemanager.h

@@ -8,5 +8,5 @@ public:
 
     TextureManager textureManager;
 
-    virtual ~ResourceManger();
+    virtual ~ResourceManger() {};
 };