macOS: Update description at top of MacOSX/build-package script
macOS: Update description at top of MacOSX/build-package script

Explicitly mention that this script builds the tokend and command
line tools (as it does not build the CryptoTokenKit app extension).

Add two missing packages in the list of build dependencies.

CardContact/OpenSC,metsma/OpenSC,OpenSC/OpenSC,AktivCo/OpenSC,hongquan/OpenSC-main,frankmorgner/OpenSC,metsma/OpenSC,CardContact/OpenSC,hhonkanen/OpenSC,philipWendland/OpenSC,fabled/OpenSC,rickyepoderi/OpenSC,frankmorgner/OpenSC,Jakuje/OpenSC,viktorTarasov/OpenSC-SM,metsma/OpenSC,AktivCo/OpenSC,philipWendland/OpenSC,dengert/OpenSC,AktivCo/OpenSC,OpenSC/OpenSC,rickyepoderi/OpenSC,hongquan/OpenSC-main,philipWendland/OpenSC,viktorTarasov/OpenSC-SM,dengert/OpenSC,OpenSC/OpenSC,dengert/OpenSC,frankmorgner/OpenSC,rickyepoderi/OpenSC,CardContact/OpenSC,mouse07410/OpenSC,LudovicRousseau/OpenSC,fabled/OpenSC,Jakuje/OpenSC,Jakuje/OpenSC,fabled/OpenSC,fabled/OpenSC,frankmorgner/OpenSC,viktorTarasov/OpenSC-SM,LudovicRousseau/OpenSC,Jakuje/OpenSC,hongquan/OpenSC-main,hhonkanen/OpenSC,mouse07410/OpenSC,hhonkanen/OpenSC,mouse07410/OpenSC,LudovicRousseau/OpenSC