Be able to ingest tournament results files

[amj]

Tournament results files produced by OpenGotha, etc, should be able to be uploaded to the 'Real Life Server' as tournaments, which should produce the related games. A ratings admin should be able to approve them.

The results file format is documented in:

• https://www.usgo.org/files/pdf/AGAMcMahonPairingInterface.pdf
• http://www.usgo.org/files/pdf/AGATournamentSchema.xsd (whyyyyyy)
• http://www.usgo.org/files/pdf/DataFormatSummary.ods (from http://www.usgo.org/go-software, which also has examples)