DataBlockWrapper - wrapper for raw data structures
There should be three static fields in raw data structs, which defines its "signature":
payloadSize - actual payload size per one raw data struct element (can be larger than GBTword size!)
payloadPerGBTword - maximum payload per one GBT word
MaxNelements - maximum number of elements per data block(for header it should be equal to 1)
MinNelements - minimum number of elements per data block(for header it should be equal to 1)\

Also it requares several methods:
print() - for printing raw data structs
getIntRec() - for InteractionRecord extraction, should be in Header struct\

DataBlockBase - base class for making composition of raw data structures, uses CRTP(static polyporphism)
usage:
class DataBlockOfYourModule: public DataBlockBase< DataBlockOfYourModule, RawHeaderStruct, RawDataStruct ...>
define "deserialization" method with deserialization logic for current DataBlock
define "sanityCheck" method for checking if the DataBlock is correct
Warning! Classes should be simple, without refs and pointers!
Example: /alice/O2/Detectors/FIT/FT0/raw/include/FT0Raw/DataBlockFT0.h

Base class for digit block, which containes "digit" structures
usage:
class DigitBlockYourDetector : public DigitBlockBase
define "template void processDigits(DataBlockType& dataBlock, int linkID)" with Raw2Digit conversion logic
define "template <class DigitType,...>void getDigits(std::vector&... vecDigits) for pushing digits into vectors which will be pushed through DPL channels, variadic arguments are applied
Example:
/alice/O2/Detectors/FIT/FT0/raw/include/FT0Raw/DigitBlockFT0.h

Base class for raw reader.
usage:
class RawReaderFT0Base : public RawReaderBase
just provide statically which linkID corresponds to DataBlockOfYourModule
Example:
/alice/O2/Detectors/FIT/FT0/raw/include/FT0Raw/RawReaderFT0Base.h\

Stores vectors with digit classes and manages them at DPL level
Example:
/alice/O2/Detectors/FIT/FT0/workflow/include/FT0Workflow/RawReaderFT0