IntelBase: allow to add lines to silent.cfg

With the dict silent_cfg_extras, you can now add additional options to
the silent.cfg file.
imkl: install everything with version 11.1.1
imkl: some cleanup and added some libs to the sanity check
Reworked after remarks
imkl: make version check more correct
imkl: updated sanity check
imkl: small remark in sanity check
Merge pull request #375 from wpoely86/imkl

MKL: install everything