Enhanced support for the @Deprecated annotation.

**Is your feature request related to a problem? Please describe.**
Many applications evolve over time and this also means that Models are getting deprecated and aren't used anymore. By supporting this annotation we introduce a clear way for the engineer and ORM to handle this.

**Describe the solution you'd like**

- The auto migrator should ignore the annotated models **if the table doesn't exist already**.
- The ORM model should still be functional, if the table exists else the methods do nothing/return empty.

**Describe alternatives you've considered**
Check the annotation myself and don't make calls to the ORM methods.

**Additional Context**
The annotation has the RUNTIME RetentionPolicy and is therefore accessible at runtime.

Beginne damit, die Einstiegspunkte des auto migrator und der ORM-Modelle zu finden, und untersuche dann, wie Laufzeitanmerkungen und fehlende Tabellen derzeit behandelt werden. Überprüfe das gewünschte Verhalten für veraltete Modelle: Vorhandene Tabellen bleiben nutzbar, während nicht vorhandene Tabellen ignoriert werden und ORM-Methoden nichts tun oder leere Ergebnisse zurückgeben.

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