Support setting compression algorithm with mdf_writer
Follow up from lhcb-dpa/prod-requests#8 (comment 7072971)
Introduce support for specifying compression algorithms alongside the existing compression level for MDF event bodies by:
- Addding
m_compressAlgmember and correspondingCompressAlgproperty toMDFWriter/RawDataCnvSvc - Modifing
mdf_writerfunction to support the compression algorithm parameter - Adapt
mergeMDFto set the compression based on what is in the LbExec Options object.