Rework the bug action group api such that we can easily convert this to an object in the future, and to validate calls to require once.

This leads to a security issue identified by IBM's Appscan program, whereby calls to require_once are not validated.
Depending on webserver configuration, this is a file inclusion vulnerability.

There will be a follow up commit to config api - probably:

• if( $g_project_override != null ) {
• if( $g_project_override != null && $p_project == null ) {

At the moment, the action group API calls config_get with a project parameter to use. This is ignored, due to project_override being set - so we either need to:
a) change project override within the command list function
b) modifify config api to only use the project override if it is attempting to look up information on the default project.