Add integration test for operator with EDOT collector and agents

[jackshirazi]

• initial test framework Integration test for EDOT agents with operator, plus skeleton for collector #16
• fix remaining agents (.NET, go)
• add collector Improve testing #61
• scrape documentation and extract installation, annotation, configuration Workflow add actual operator #55
• convert test to use the scraped content (so it becomes an actual regression test) Workflow add actual operator #55
• enhance the applications to create traces Improve testing #61
• all agents multi-arch (amd64/arc64)