adding makeField() to the API so sub-projects (such as apf-sim) can subclass the fieldDataOn class to implement new field storage methods
adding makeField() to the API so sub-projects (such as apf-sim) can subclass the fieldDataOn class to implement new field storage methods

yangf4/core,YetAnotherMinion/core,YetAnotherMinion/core,yangf4/core,yangf4/core,yangf4/core,YetAnotherMinion/core,yangf4/core,YetAnotherMinion/core,YetAnotherMinion/core