show only sdk's from the same host while attach to remote process

RUBY-22120
IDEA-CR-35137

platform/xdebugger-impl/src/com/intellij/xdebugger/attach/EnvironmentAwareHost.java

@@ -74,4 +74,12 @@ public abstract class EnvironmentAwareHost implements XAttachHost {
    */
   @NotNull
   public abstract String getFileSystemHostId();
+
+  /**
+   * @param credentialsObject is a parametrization of a host
+   * @return whether the given credentials corresponds the same host
+   */
+  public boolean isSameHost(@NotNull final Object credentialsObject) {
+    return false;
+  }
 }