Modify marks for issuing entity Revena: REVENA / ( AИƎVƎЯ ? )

Issuing entity: https://en.numista.com/catalogue/issuing_entity.php?id=6780

A mark of this issuing entity was created on 27 November https://en.numista.com/forum/topic168667.html but the fields were filled incorrectly (unlike other marks).  I think the right thing is:

• Mint: (none)
• Name: Revena privy mark ❌ → (empty)
• Image: (none)
• Position title:
  • (EN) (empty) ❌ → Revena privy mark
  • (ES) (empty) ❌ → Marca privada de Revena
• Mark description:
  • (EN) (empty) ❌ → REVENA
  • (ES) (empty) ❌ → REVENA
• Numista object: N#345925

Retrograde privy mark

Also, there is a retrograde Revena privy mark. There are two options:

1. Create the retrograde mark:
   • Mint: (none)
   • Name: (empty)
   • Image:
     
   • Position title:
     • (EN) Revena privy mark
     • (ES) Marca privada de Revena
   • Mark description:
     • (EN) Retrograde REVENA
     • (ES) REVENA retrógrada
   • Numista object: N#345916
      
2. Use the mark REVENA with comment “Retrograde mark” in the year line.

Note: Also fix this https://en.numista.com/forum/topic167908.html#p1293241