Add basher config file

[Dauliac]

Basher is shell package manager.

That might be a good idea to be compliant with it.

It's only require a sh config file package.sh like that:

BINS=src/adr-config:src/adr:src/adr-generate:src/adr-help:src/adr-init:src/adr-link:src/adr-new:src/adr-upgrade-repository
BASH_COMPLETIONS=autocomplete/adr
ZSH_COMPLETIONS=completions/_package

TODO:

• Add package.sh manually maintained.
• Fix _ prefixed script file to use path of script and not the path of the simlink:

declare -xr CURRENT_PATH
CURRENT_PATH=$(dirname "${BASH_SOURCE[0]}")

• Maybe add script to generate it from sources.