julia

a04cde9b - implement a julia specific debug mode with `--debug`

implement a julia specific debug mode with `--debug` This PR adds a new flag to control when a "julia specific" debug mode is active. When the debug mode is active the following happens: - The `@assert` macro is active - The `isdebug` function returns `true`. Currently, the `--debug` has three options: - `"yes"`: debug mode is active in scripts and packages - `"script": debug mode is active in scripts - `"no": debug is not active anywhere The debug mode is a "compile time option" meaning that it will recompile packages if it changes.