bve 0.0.1

Remaking OpenBVE using a modern architecture, using Unity and Rust.
#[derive(Debug, Clone, PartialEq)]
pub enum Instruction {
    Addition,
    Subtraction,
    Multiplication,
    Division,
    LogicalOr,
    LogicalAnd,
    LogicalXor,
    UnaryLogicalNot,
    UnaryNegative,
    Equal,
    NotEqual,
    Less,
    Greater,
    LessEqual,
    GreaterEqual,
    FunctionCall { name: String, arg_count: usize },
    Variable { name: String },
    Number { value: f64 },
}