fix: add SaveOptions and RemoveOptions into ActiveRecord (typeorm#4318)

* Adding SaveOptions to BaseEntity#save

* Adding RemoveOptions to BaseEntity#remove

src/repository/BaseEntity.ts

@@ -46,15 +46,15 @@ export class BaseEntity {
      * Saves current entity in the database.
      * If entity does not exist in the database then inserts, otherwise updates.
      */
-    save(): Promise<this> {
-        return (this.constructor as any).getRepository().save(this);
+    save(options?: SaveOptions): Promise<this> {
+        return (this.constructor as any).getRepository().save(this, options);
     }
 
     /**
      * Removes current entity from the database.
      */
-    remove(): Promise<this> {
-        return (this.constructor as any).getRepository().remove(this);
+    remove(options?: RemoveOptions): Promise<this> {
+        return (this.constructor as any).getRepository().remove(this, options);
     }
 
     /**