Letter identification for the procedures, part of auctionId

Using such letter identifications for the procedures:

• renewables-multiAwards - RMA
• timber-english - TIE
• subsoil-english - SUE
• railwayCargo-english - RCE
• railwayCargo-dutch - RCD

Change in data structure:

• subsoil-english - SUE in previousAuctionId validation rules
• renewables-multiAwards - RMA in previousAuctionId validation rules
• timber-english - TIE in previousAuctionId validation rules