libclang-v100-dyn.sh had the libclang version 10.0 hard coded in the
file name for the Windows scripts. All local provisioning scripts
calling the latter also had the same version hard coded in their
respective filenames. libclang-v100-dyn.sh also sets the version to be
downloaded in a local variable
There is a mismatch between file names and actually installed version
when the download version is modified.
Remote version from common installer and related local scripts.
Change-Id: I81773ff5a834b6f396ce17af93c6510991de129a
Reviewed-by: Axel Spoerl <axel.spoerl@qt.io>