Add automake to the build process

[rfairley]

This involves adding automake to the project and anything else that automake needs to be supported.

This is useful for things like build macros, which are enclosed with @ throughout source files (see an example in Cockpit. Having macros for directories, source file paths and names would ensure the source files and the specfile are in sync. It also means the package name can easily be changed with minimal manual changes.

[rfairley]

Adding automake will also provide a standardized for creating a distribution package of the source code https://www.gnu.org/software/automake/manual/html_node/The-dist-Hook.html#The-dist-Hook.

[rfairley]

See also https://docs.pagure.org/copr.copr/user_documentation.html#scm.