Improving package installation

Important change: do not ask to select variations in "ck install package" when there are 2 or more variations!
Needed to distinguish between selecting different versions of a given package or customizing the same package!

added --force_version to "ck detect soft"

Added --force_version to "ck detect soft" to force version.
Useful to automate autodetection of imagenet, for example.

added --quiet to install packages

• added --quiet flag to automatically enter default answer to most questions

added --default flag to the package module

• added --default flag to ck install package to automatically select 0 when multiple packages and variations available.

improving package installation

• extended module:package to ask a user to select a variation for a given package when there are multiple versions available.

minor extensions

• added --tags to "ck find" action to be able to search for entries by tags and return their paths
• added module:doc to abstract documentation

fix cpu & gpu set_freq commands

• Updated 2 modules: ctuning/ck-env#116

minor fixes and module improvements

• fixed minor API typo
• improvements from Arm to 2 CK modules: platform.cpu and platform.gpu: ctuning/ck-env#113

Updating modules

Regular minor updates:

• removed two outdated modules
• updated module:program
• added incubator projects

Fixing previous broken release

This release provides fixes for the broken V1.50.0 release (missing modules).