Fix docker image

Create a proper docker image again. This is necessary for

• testing the database #210
• creating reproducable figures
• binder
• general ease of installation

First a proper conda package needs to be created #181 .

We can also add development packages to the docker container, e.g. in conda

• tmux
• jupyter
• ripgrep
• anaconda-client
• vim (for git)
• man (for git)
• coverage (or ensure it works)
• new black #250 (closed)

Not conda

• meld (not the conda package)
• docker, to build the docker image
• less

Also perhaps do

• predownload files (by running tests)
• put project in /opt/project (to be rebound by user or PyCharm)
• /opt/project# conda develop src/ or add /opt/project/src to Python path, in particular for docker-compose
• bash build.sh
• make compatible with mybinder: https://mybinder.readthedocs.io/en/latest/tutorials/dockerfile.html
• ensure docker-compose notebook starts with database

Also add gitprompt:

curl https://raw.githubusercontent.com/git/git/master/contrib/completion/git-prompt.sh -o /root/git-prompt.sh
echo "source ~/git-prompt.sh" >> /root/.bashrc
echo "export PS1='[\u@\h \W\$(__git_ps1 \" (%s)\")]\$ '" >> /root/.bashrc
echo "conda activate base" >> /root/.bashrc

Perhaps force caching of scopesim packages?

$ cat .scopesim_rc.yaml 
alias: SIM
properties:
  file:
    use_cached_downloads: True

And then perhaps download them once at the start of the test run?

Also update dependencies:

• astroconda is not necessary anymore, use conda-forge, see !78 (merged)

See !287 (merged)