Particles: Generic Attribute Initialization

- add helper trait named `ResolveAndRemoveFromSeq` to resolve and remove aliases and identifier from a boost mpl sequence 
- set all particle attributes which are not explicitly initialized to the default value
The flag `raditionFlag` is only a particle attribute if this `(RAD_MARK_PARTICLE>1) || (RAD_ACTIVATE_GAMMA_FILTER!=0)` is true.
The old implementation was wrong.