Refactoring conditional usage of (commercial) packages

[adrolli]

Using commercial packages like "Advanced Tables" should not be done by introducing a composer dependency. Instead, these packages should be loaded conditionally using class_exists or trait_exists. This is currently implemented in Moox Core, but comes with a couple of culprits:

• Stan does not like it
• Intelephense does not like it
• Codacy does not like it
• It will become pretty spaghetti, when multiple packages need to be coupled this way

Refactoring should be done by using one of following techniques:

• DI container aka Service container
• Abstraction to service classes

Currently, some features of Advanced Tables are disabled (in AdminPanelProvider of Intranet-project) to prevent user-facing errors:

• Quick save
• Preset views manageable
• View manager search
• Advanced Filter Builder