
Provide support fot kolla dev mode in sahara. When 'kolla_dev_mode' or 'sahara_dev_mode' variables are enabled, source code of sahara project will be cloned and mounted automatically Partially implements: blueprint mount-sources Change-Id: I496ea4443ec8ffc4dc9d0f0d3e6a4514d16ed336 Co-Authored-By: zhulingjie <easyzlj@gmail.com>