Conditional beans include support in commons-spring

[mhawryluk]

Would be cool if there was an option to include other bean files in HOCON based on a specified condition, so certain functionalities could be disabled via a feature flag and then unnecessary beans would not be built. Similar thing can be achieved by just choosing to include a file or not instead of setting a boolean feature flag, however it's not an ideal approach as it tangles configuration with Dependency Injection.

It could look something like this:

beans {
  ...
}

conditional = [
  {condition: ${ump.feature.enabled}, beans: {include "feature.conf"}},
  {condition: ${ump.coolStuff.enabled}, beans: {include "coolStuff.conf"}}
]