Designer Side - Multi-layer Change

Context :

Subsequent to release 4.5, we note that designer assets from dependent studio projects are added to local types in Designer

-> This creates a range of issues, notably that the links back to studio breaks (as the feature is not listed)

-> It is not coherent with regards to the existing 'Build in' types 

Note: Designer assets coming from a dependent studio project are correctly removed is that dependant project is removed in App Def, hence some notion of identification of source exists  

 
To Do :

Add in Designer under 'Layouts' section, add 'Document Types from Dependencies' section which should behave like 'Built-in Document Types'

This should list the layouts coming from dependencies 

-> If none are present this category should not appear

-> If a dependency is removed, the assets should also disappear as is currently the case 

AC :

• I add a dependent project in App Def, I should see in Layouts > 'Document Types from Dependencies' the layouts from that dependency 
• If I remove the dependency I should not see the layouts, if there are no layouts from dependencies the section should not be visible