Bug: channels are in the wrong order

[clintval]

Bioconda requires this channel ordering (with conda-forge as highest priority):

❯ conda config --add channels defaults
❯ conda config --add channels bioconda
❯ conda config --add channels conda-forge

❯ conda config --show channels

channels:
  - conda-forge
  - bioconda
  - defaults

Or else problems like this occur: bioconda/bioconda-recipes#12100

Currently ansible-conda has no command for addition of channels, only append.

I opened a ticket for the feature request but may have to implement the channel ordering manually through a .condarc or other patching the plugin in the library directly: UDST/ansible-conda#26