Taiga image takes alot of time/resources to build

[waleedhammam]

• In the entrypoint we have a list of python requirements and apt packages
• git cloning for more than one repo
• building frontend and Django migrations
• should be tested against zos container

that all should be in the image to save time, also it may lead to failures on zos containers

image: https://github.com/threefoldtech/tf-images/tree/master/taiga_all_in_one

[xmonader]

because these operations should be done in the image layers NOT after the container starts

[waleedhammam]

refactored at: https://github.com/threefoldtech/tf-images/tree/master/taiga_io