ModuleBuilder - add initENC after addGBeans

[Gianny Damour]

Hi,

I think that we need to split ModuleBuilder.addGBeans into two methods: 
addGBeans and initENC. addGBeans implementations perform GBean 
registrations as per the current approach. initENC is invoked after the 
addGBeans phase and implementations use this callback to build the ENC.

The issue with the current implementation is that it is impossible to 
bind a GBean reference to the ENC if the referenced GBean is defined by 
a module which has not yet been processed by addGBeans. For instance, if 
a module A references a GBean added by a module B and if module A is 
processed before module B, then it is impossible to locate the 
referenced GBean as it has not yet been added to the registry.

If there is no objection, I will start to work on it in the next couple 
of days.

Thanks,
Gianny