IAction & Action deleted, some tests added

Author: Kindratte

src/main/java/org/scm4j/deployer/api/Action.java

@@ -32,9 +32,7 @@ public ProductStructure parent() {
 
     @Override
     public String toString() {
-        return "Component{" +
-                "artifactCoords=" + artifactCoords +
-                '}';
+        return "Component{artifactCoords=" + artifactCoords + '}';
     }
 
     @Override

src/main/java/org/scm4j/deployer/api/Component.java

@@ -49,5 +49,7 @@ public void init(IDeploymentContext depCtx) {
         ps = ProductStructure.createEmptyStructure();
         assertEquals(ps.getDefaultDeploymentPath(), "");
         assertEquals(ps.getComponents(), Collections.emptyList());
+        assertEquals(new Component("123:123:123", ps), new Component("123:123:123", ps));
+        assertEquals(new Component("123:123:123", ps).toString(), "Component{artifactCoords=123:123:jar:123}");
     }
 }