feat(model): add findOrCreate method

Author: jlenon7

src/database/drivers/FakeDriver.ts

@@ -373,6 +373,19 @@ export class FakeDriver {
     return data
   }
 
+  /**
+   * Find a value in database or create a new one if it doesn't exist.
+   */
+  public static async findOrCreate(data: Partial<any>): Promise<any> {
+    const hasValue = await this.find()
+
+    if (hasValue) {
+      return hasValue
+    }
+
+    return this.create(data)
+  }
+
   /**
    * Find a value in database or execute closure.
    */