Allow log-level: DEBUG on a per package basis

[wasade]

Currently DEBUG is supported at the global level, but having it supported at the per-package level would help when resolving build issues

[ElDeveloper]

👍

This should perhaps be a command line option something like:

# will print the debug output for all packages
qiime-deploy.py --debug $HOME/qiime_software/ -f $HOME/qiime-deploy-conf/qiime-1.7.0/qiime.conf --force-remove-failed-dirs

# will print the debug output for qiime and matplotlib
qiime-deploy.py --debug=qiime,matplotlib $HOME/qiime_software/ -f $HOME/qiime-deploy-conf/qiime-1.7.0/qiime.conf --force-remove-failed-dirs

[wasade]

@ElDeveloper that would be fantastic