Load Audit Data

[stefandyke]

To allow others to contribute their audit data to APISnoop, we need to provide an ability to upload audit-logs for analysis. These could then be loaded into the sunburst visualization, or other APISnoop tools allowing for a deeper dive into their own data data.

It might also be possible, once test-infra jobs support storing audit.logs, to use gs://bucket/path/to/audit.log urls as as source.

To allow this I propose a drag/drop if the user wishes to upload a local file or and alternative to input a URL/Link to the data to be consumed by the APISnoop service, as illustrated below: