This is not required for v4.0 (the previous zip will work for v4.0), but it will be
required if updating to a newer ESP-IDF and there's no downside to requiring it here.
Latest versions of apt-get don't install as much packages by default
as older ones. This fix adds some missing packages discovered for an OS
derived from the latest stable Debian. These packages exist for older
Debian derivatives as well (tested with Ubuntu 16.04 LTS).
Closes https://github.com/espressif/esp-idf/issues/4480
Rename all the files which will be edited substantially in the next commit, without changing their
contents
Docs will not build for this ocmmit.
This is done so that git doesn't decide we renamed xxx-cmake -> xxx-legacy in the next commit, which
is what it will infer otherwise (and makes rebasing more of a pain than it should be)
