feat: (WIP) Add support to nannou_laser for lasercube devices

[mitchmindtree]

Adds lasercube support via the new crate: https://github.com/nannou-org/lasercube.

WIP: Currently compiles, CI failing due to warnings.

To-Do

• Add LaserCube dependencies to nannou_laser/Cargo.toml
• Update DetectedDac enum to add a LaserCube variant
• Update Id enum to add a LaserCube variant
• Create src/protocol/lasercube.rs module
• Update max_point_hz(), buffer_capacity(), and id() methods on DetectedDac
• Update StreamError enum to handle LaserCube errors
• Create point conversion functions (LaserCube ↔ nannou_laser)
• Implement device detection for LaserCube DACs (using lasercube::discover).
• Move ether-dream specific stream logic (e.g. run_laser_stream_tcp_loop) into protocol/etherdream.rs.
• Add raw stream implementation for lasercube (inspired by circle.rs example).
• Update stream building logic to handle LaserCube DACs
• Update ffi module.
• Test both etherdream and lasercube implementations.