(bug 41769) Add frame:callParserFunction() and frame::extensionTag()

Requires change I339b882010dedd714e7965e25ad650ed8b8cd48f to
mediawiki/core.

Bug: 41769
Change-Id: I0138836654b0e34c5c23daaedcdf5d4f9d1c7ab2
Merge "(bug 41769) Add frame:callParserFunction() and frame::extensionTag()"