Refactoring of the charged particle pt task

Refactoring of the charged particle pt task
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Refactoring of the charged particle pt task in order to make it more
flexible for further studies. The analysis functionality is decoupled
from the task and moved to analysis components, which can be grouped by
common event selections. A combination of event data (reconstructed and
MC event), combined with the different EMCAL containers, are shared
among the task and the different analysis components. The task itself
only steers event building and the execution of the different analysis
components.