added JPetDBParamGetter class which takes part of the responsabilities from Param Manager, added
added JPetDBParamGetter class which takes part of the responsabilities from Param Manager, added

wkrzemien/j-pet-framework-examples,wkrzemien/j-pet-framework-examples,JPETTomography/j-pet-framework-examples,JPETTomography/j-pet-framework-examples,wkrzemien/j-pet-framework-examples,JPETTomography/j-pet-framework-examples,JPETTomography/j-pet-framework-examples