Add changelog for v1.1

Signed-off-by: Leonid Kondrashov <leo.kondrashov@gmail.com>

Author: leokondrashov

CHANGELOG.md

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+# Changelog
+
+## [Unreleased]
+
+### Added
+
+### Changed
+
+### Fixed
+
+## Release v1.1
+
+### Added
+
+- **Multi-Loader Feature (by Lenson)**: A comprehensive multi-loader was introduced to run concurrent load tests. This includes documentation, a fail-fast flag, a dry run mode, and the ability to use sweep fields for experiments.
+- **Cloud and Platform Integrations**:
+    - **Azure Functions (by Hancheng Wang)**: Integrated deployment and execution of Azure Functions.
+    - **AWS Lambda (by Lee Xuan Hua)**: Integrated AWS Lambda using the serverless.com framework, including end-to-end tests and a shift from Zip to Image deployment via ECR.
+- **RPS and Dirigent Enhancements (by Lazar Cvetković & Tobias Stocker)**:
+    - Implemented a new Requests Per Second (RPS) mode with warmup capabilities and data size features.
+    - Added RPS support for Dirigent Dandelion workflows and GPU options.
+    - Introduced a new individual function driver and improved IAT generation.
+- **Tooling and Scripts**:
+    - **Kind and Prometheus Setup (by Lenson)**: Added scripts for setting up Kind nodes, Prometheus, and distributing SSH keys.
+    - **vSwarm Support (by aryans1204)**: Added support for vSwarm, including a parser for mapper output, deployment of vSwarm functions, and associated documentation.
+    - **Mapper Tool (by KarthikL1729 & L Lakshmanan)**: Introduced a tool to map traces to vSwarm proxies, along with documentation.
+    - **Failure Injection (by Lazar Cvetković)**: Added a feature to trigger failures in cluster manager components.
+- **Advanced Logging and Metrics (by Lenson)**: Improved log consolidation, added advanced log collection with tests, and exposed additional metrics.
+
+### Changed
+
+- **CI/CD and Dependencies (by dependabot & Lazar M. Cvetković)**:
+    - Upgraded GitHub Actions workflows to use Ubuntu 24.04.
+    - Performed numerous dependency updates for both production and development packages, including `golangci-lint`, `numpy`, and `pytest`.
+- **Code and Configuration Refinements**:
+    - **API and Client Improvements (by Lazar Cvetković)**: Introduced a new gRPC interface for deployment and invocation, and a new HTTP workload client.
+    - **General Refactoring (by various authors)**: Refactored Kind setup scripts, simplified SSH key storage, and moved Dirigent-specific parameters into a separate configuration.
+- **Documentation Updates (by various authors)**: Updated documentation for the multi-loader, vSwarm, and the mapper tool, and fixed broken links.
+
+### Fixed
+
+- **Setup and Configuration Scripts (by JooYoung Park & Leonid Kondrashov)**:
+    - Patched the multi-node creation script for compatibility with `invitro`.
+    - Fixed `kubeadm` config YAML and issues with exposing infrastructure metrics.
+- **Bug Fixes and Stability**:
+    - **Core Functionality (by Lazar Cvetković)**: Addressed bugs in YAML selectors, Dirigent metadata, and Inter-Arrival Time (IAT) generation.
+    - **Testing (by Leonid Kondrashov & Kway Yi Shen)**: Fixed data races in tests, incorrect CLI types, and issues with end-to-end test setups.
+- **Cloud Deployment Issues (by Lee Xuan Hua)**:
+    - Resolved AWS Lambda timeout issues, IAM policy size limits, and CloudFormation resource constraints.
+    - Fixed issues with parallel deployment of `serverless.yml`.
+- **Linting and Formatting (by various authors)**: Corrected various spelling errors and linting issues across the codebase.