Changing long longs in EventInfo into std::int64_t
Better to use types with "known" fixed bitsize - and long long may jump to 128 bits at some point.
Modified also 'MissingETBase::Types::bitmask_t' because it was used I/O
Had to update the TBranchAuxDynReader to handle the int type changes correctly and fixed calls to GetConversionStreamerInfo in TAuxStore
Edited by Marcin Nowak