Refactor jboss.container.maven.default.*

The module name jboss.container.maven.default.bash was provided by two
modules in order to support Maven version 3.5 and 3.6
(See a6ddba6 for details)

The source differences between the two modules were very minor. Adjust
jboss.container.maven.default.bash.default to remove explicit references
to maven versions, and delete the 36 version.

Rename, move and re-version the remaining module as
jboss.container.maven.default (no .bash suffix). The new module name
means we can side-step the version epoch issue.

Dependent images will need to adjust to the new name and remove any
explicit module version (instead depend upon the specific Maven required)

Signed-off-by: Jonathan Dowland <jdowland@redhat.com>