Add support for Parameter packs in type(name) normalization.
Add support for Parameter packs in type(name) normalization.

This fully resolve ROOT-7708.

marsupial/cling,karies/cling,root-mirror/cling,marsupial/cling,marsupial/cling,karies/cling,root-mirror/cling,karies/cling,root-mirror/cling,karies/cling,karies/cling,marsupial/cling,marsupial/cling,marsupial/cling,root-mirror/cling,root-mirror/cling,karies/cling,root-mirror/cling