Archive EOL docs

Several components have EOL versions in the prod docs that need removing to docs-archive.couchbase.com 

• Server 6.0
• Server 6.5
• AO 1.2
• AO 2.0
• SGW 2.0 - 2.7
• CBLite 2.0 - 2.7
• libcouchbase 3.0
• .NET SDK 3.0
• Go SDK 2.1
• Java SDK 3.0
• Node.js SDK 3.0
• PHP SDK 3.0
• Python SDK 3.0
• (Ruby 3.0 at end of March)
• Kafka 3.4 (4.0 at end of Feb)
• Spark 2.4
• ES 4.0 - 4.2

For SDKs, this involves reconfiguration of the release notes pages.