Add a partyRole codelist to ocds_eu_extension

[ColinMaudry]

Codes to be added:

• 'reviewContactPoint' for 'Service from which information about the review procedure may be obtained' Add 'reviewContactPoint' to partyRole.csv for 'Service from which information about the review procedure may be obtained' #25
• 'centralPurchasingBody' for 'The contract is awarded by a central purchasing body' codelist Add 'centralPurchasingBody' to partyRole.csv for 'The contract is awarded by a central purchasing body' #11
• 'processContactPoint' for 'Additional information can be obtained from another address' codelist Add 'processContactPoint' to partyRole.csv for 'Additional information can be obtained from another address' #9
• 'mediationBody' for 'Body responsible for mediation procedures' codelist Add 'mediationBody' to partyRole.csv for 'Body responsible for mediation procedures'  #4
• 'selectedParticipant' for 'The parties that have already been selected to participate to the design contest.' (IV.1.7, ocds_designContest_extension)

[ColinMaudry]

I think we're good 😎

grep -ho " '[a-zA-Z]*' to its \`.roles\`" output/mapping/*.csv  | sort -u

 'buyer' to its `.roles`
 'funder' to its `.roles`
 'mediationBody' to its `.roles`
 'processContactPoint' to its `.roles`
 'reviewBody' to its `.roles`
 'reviewContactPoint' to its `.roles`
 'selectedParticipant' to its `.roles`
 'supplier' to its `.roles`

[ColinMaudry]

The phrasing for centralPurchasingBody is slightly divergent @jpmckinney ⚠️ 😄

Add 'centralPurchasingBody' to the `.roles` of the party

[jpmckinney]

Yeah, that one's different because the party was created in an earlier field mapping 😃