move DP properties to MCR - Applet JAR signing Parameters

# Alias for key pair, e.g. mycore
  SIGN.Alias=docportal

# File where the keys are stored in
  SIGN.KeyStore=%MCR.basedir%/build/keystore

# Password for keystore and key pair
# SET IN PRIVATE.PROPERTIES: SIGN.Password
  SIGN.Password=alleswirdgut

# Number of days the key should be valid
  SIGN.Validity=1000

# Name, organization and country of signer
  SIGN.Name=%MCR.NameOfProject% Server
  SIGN.OrgUnit=%MCR.NameOfProject%
  SIGN.Organization=MyCoRe
  SIGN.Country=Germany