[FEATURE,API] removed template argument from FeatureMap
[INTERNAL] moved FeatureMap code to cpp file
[INTERNAL] moved ConversionHelper code to cpp file
[INTERNAL] moved FileHandler code to cpp file
[INTERNAL] moved IDMapper code to cpp file
[INTERNAL] moved TOPPBase code to cpp file
[FIX] added missing export macros and moved some more code from headers to cpp
Merge pull request #1036 from aiche/feature/template-less-feature-map

[FEATURE,API] Removed template parameter from FeatureMap