Remove the python3-tools package (bz#1312030)
    
    For more details see https://bugzilla.redhat.com/show_bug.cgi?id=1312030
    
    Scope:
    
    - Remove the python3-tools package and `Tools/` library
    - Move /usr/bin/2to3 to python3-devel
    - Move /usr/bin/idle and idlelib to python3-idle
    - Provide python3-tools from python3-idle to keep upgrades sane
    - Remove tests for tools from python3-tests package
    
    Merges https://src.fedoraproject.org/rpms/python37/pull-request/4