Add transform API to Rust

[emesare]

• https://github.com/Vector35/binaryninja-api/blob/dev/transformsession.cpp
• https://github.com/Vector35/binaryninja-api/blob/dev/transformcontext.cpp
• https://github.com/Vector35/binaryninja-api/blob/dev/transform.cpp
  • Should have a shape similar to https://github.com/Vector35/binaryninja-api/blob/dev/rust/src/data_renderer.rs

Must have unit tests in rust/tests as well as at least one example in rust/examples