Add Switchboard Surge to Drift v2

[mgild]

This pull request introduces support for a new oracle source, SwitchboardSurge, across the Drift program and its dependencies. It also adds new documentation and tooling for the switchboard-on-demand library, updates dependency versions, and improves configuration for builds and documentation deployment.

SwitchboardSurge Oracle Integration

• Added a new OracleSource::SwitchboardSurge variant and corresponding logic to parse and use SwitchboardSurge oracle quotes, including price, confidence, and delay calculations in oracle.rs, admin.rs, and perp_market.rs. [1] [2] [3] [4] [5] [6] [7]
• Updated the switchboard-on-demand dependency to include the new anchor feature for compatibility, and added related dependencies for enhanced functionality. [1] [2]

Documentation and Tooling for switchboard-on-demand

• Added comprehensive documentation files (README.md, DOCS.md), Firebase hosting configuration (firebase.json), and build scripts (package.json, scripts/compile_docs.ts) to support generating and deploying Rust docs for switchboard-on-demand. [1] [2] [3] [4] [5]
• Updated .gitignore to include .env and documentation artifacts for better workflow management.
• Added a rustfmt.toml file to standardize Rust code formatting.

Dependency and Build Configuration Updates

• Pinned anchor-lang and anchor-spl dependencies to exact versions for reproducible builds, and added ahash as a dependency across several Cargo.toml files. [1] [2] [3] [4]
• Enabled additional build options such as overflow-checks and set resolver = "2" in the workspace for improved safety and compatibility.
• Added an Anchor.toml toolchain configuration file specifying Anchor version for local development.