Feature/report any query

[asllop]

Goals

• Accept arbitrary event log queries.
• Accept queries of any type of event, not only event logs.
• Read credentials from env vars.
• Implement Redis cache for events.
• Configurable timestamp attribute.
• Improve NR API interaction.
• Fix multiple issues.
• Build a docker image to run the integration.
• Improve documentation.

[asllop]

Extended goals

• Reuse the token and check for auth error and refresh. Because the is a limit in the number of times we can authenticate per hour.
• Get cron_interval_minutes and token_url from env var.
• Select the SF response attribute we want to use as a timestamp, not use hardcoded one (CreatedDate).
• Create specific set of substitution variables for each query.
• Improve Redis interaction.
• Generate telemetry data about request fails (SF query, column name and failure reason).
• Set SF API version in config.yml, and an env var.
• Set a custom eventType name for each query.
• Load queries config from multiple YAML files.