refactor main() function and ModuleManager classes in all modules to accommodate new patterns

[wojtek0806]

since this mechanism was already implemented in the icontrol rest class, we need to remove it from other modules.

https://github.com/F5Networks/f5-ansible/blob/devel/library/module_utils/network/f5/icontrol.py#L243

This is done already here:

https://github.com/F5Networks/f5-ansible/blob/devel/library/modules/bigip_node.py#L766

[wojtek0806]

Completed Modules:

• [x] bigip_data_group
• [x] bigip_lx_package