[RabbitMQ] bytecode instrumentation for versions 6.*.* - initial

[lachmatt]

Why

Towards: #3392

What

Bytecode instrumentation for RabbitMQ client versions >=6.0.0 &< 7.0.0

Instrumentation creates following spans:

• receive when BasicGet is used to retrieve messages (polling)
• process when AsyncEventingBasicConsumer and EventingBasicConsumer are used
• publish when messages are published using BasicPublish

Span names, attributes set and their values are based on recently added instrumentation in RabbitMQ client (to be released with version 7.0.0) and messaging semantic conventions.

Targeted types are similar to types targeted by datadog's RabbitMq client instrumentation. @zacharycmontoya please review and approve if you accept it from datadog's side.

Note:
Followup PRs required to address:

• handling baggage for process spans
• setting network-related attributes
• for more complete support, integrations of kind Derived and Interface should be created for consumer types

Tests

Included in PR.

Checklist

• CHANGELOG.md is updated.
• Documentation is updated.
• New features are covered by tests.

[zacharycmontoya]

LTGM, thanks for contributing this instrumentation!