Temporarily skip non-vital tests

Rewrites tests for dot-six api rewrite

Fix GenerateLoad

installer - show progress of download of 70M+ rio binary

Fix linkerds

installer.sh - allow install binary without requiring sudo

Allows logs to lookup builds automatically

Major refactor

Add P1 tests to integration and validation

Falling back to default ~/.kube/config if no KUBECONFIG env is set for client-go

This is the default rio behavior, we should do the same

Removing unused python dependencies from CI Dockerfile

Adding validations to scale tests

This is part of #559 Add kubectl validations to the test framework

Reordering the validations in CI

Add route test and kubectl validations

Usage:

    SKIP_SUDO=1 INSTALL_RIO_BIN_DIR=$PWD ./install.sh

When you're on slow or flakey internet, some visual indicator
of progress, and "time left [til happiness]" is a Good Thing.

Adding extra validations using kubectl for service endpoints

This validates the endpoint URLs generated by rio for the revisions and Global are present.
- Making improvements based on PR feedback
- Getting the url hostname only to compare the endpoint between kubectl and rio

Add roundtrip stack export integration test