Update wiki

Includes additional info on:

• Kubernetes deployment
• Ambassador endpoints
• Map Demos with Leaflet/ArcGIS JS API
• General cleanup/polish
• Update default fields for Seismic3D layer definition in koop-config.json
• Add OAuth notes to configuration document to address the client_credentials grant type and how that impacts the type of client_id/client_secret pair required for GCZ authentication to OSDU