add debug script for running node that uses `-lruntime=debug`

[4meta5]

run node with -lruntime=debug to print the error instead of getting something like system:ExtrinsicFailed:: (phase={"ApplyExtrinsic":2}) shared.ts?3413:309 DispatchError: {"Module":{"index":24,"error":0}}

[4meta5]

To check if the code compiles to wasm without the anxiety of delayed linker errors, compile to the target here https://github.com/therealprof/atsamd20e15a thumb7m-none-eabi instead of wasm32-unknown-unknown

[dvc94ch]

I guess this one can be closed too?

[4meta5]

ye