With this all fonts and Luts bin are downloaed for other repo which
is closed from others. With minimum changes to our cmake and flow
Added cache dir as set in cmake for CI
CI has to use common cache to not download data all the time
Jenkinsfile updated to install lacking dependency
* add BellHybridMain
* fixing post review
Git automatically converts BellHybird as move from source/main.cpp to
prevent this and maintain "main.cpp" history adding new target as
separate commit.
Introducing changes required for adding BellHybird target without
removing PurePhone.
Adden new targets:
* Pure (builds PurePhone and PurePhone.img)
* Bell (builds BellHybird and BellHybird.img)
* [PurePhone|BellHybrid]-[UpdatePackage|StandaloneImage)
