Add database commits

GerbilManagerWebAPI/Controllers/BreedersController.cs

@@ -50,6 +50,7 @@ namespace GerbilManagerWebAPI.Controllers
             };
 
             this.unitOfWork.BreederRepository.Insert(breeder);
+            this.unitOfWork.Save();
 
             return CreatedAtAction(nameof(GetBreeder), new { id = breeder.Id}, breeder.AsDto());
         }
@@ -68,6 +69,7 @@ namespace GerbilManagerWebAPI.Controllers
             };
 
             unitOfWork.BreederRepository.Update(updatedBreeder);
+            this.unitOfWork.Save();
             return NoContent();
         }
 
@@ -82,6 +84,7 @@ namespace GerbilManagerWebAPI.Controllers
             }
 
             unitOfWork.BreederRepository.Delete(existingLitter);
+            this.unitOfWork.Save();
 
             return NoContent();
         }