SqlSetup: Missing Configuration Feature/Options : Machine Learning (Python & R)

Details of the scenario you tried and the problem that is occurring

This issue is created to bring some improvements to the SqlSetup DSC Configuration. The idea is to report all the missing options in the resource to be allow the installation of all the features and to use all the options available in the SQL Server installer.

Support for feature to add :
AdvancedAnalytics : Install R on SQL Server 2016 / install R Open and proprietary R packages.
SQL_INST_MR : Applies to SQL Server 2017 Machine Learning Services. Pair with AdvancedAnalytics to install R Open and proprietary R packages
SQL_INST_MPY : Applies to SQL Server 2017 Machine Learning Services. Pair with AdvancedAnalytics to install Anaconda and proprietary Python packages.
SQL_SHARED_MR : Installs R packages for SQL Server 2016 R Server (Standalone) or SQL Server 2017 Machine Learning Server (Standalone)
SQL_SHARED_MPY : Installs Python packages for SQL Server 2017 Machine Learning Server (Standalone)

Option to add to the DSC Resource :
/IACCEPTPYTHONLICENSETERMS
/IACCEPTROPENLICENSETERMS
/MPYCACHEDIRECTORY
/MRCACHEDIRECTORY

The DSC configuration that is using the resource (as detailed as possible)

SqlSetup

Version of the operating system and PowerShell the target node is running

Windows Server 2012/2012R2/2016

SQL Server edition and version the target node is running

SQL Server 2016/2017 only

What SQL Server PowerShell modules, and which version, are present on the target node.

Most recent version

Version of the DSC module you're using, or write 'dev' if you're using current dev branch

Most recent version

Start with the SqlSetup DSC resource and review how it maps SQL Server installer features and options. Compare that handling with the listed SQL Server 2016/2017 Machine Learning features, license terms, and cache directories; done means the requested options are supported and covered for the stated versions.