Crash on "Maximum call stack size exceeded" on missing file

[drortirosh]

When some included file is missing, it aborts on endless loop, without even reporting the missing include.
e.g.:

$ git clone [email protected]:eth-infinitism/account-abstraction.git
$ cd account-abstraction
$ sol2uml contracts

RangeError: Maximum call stack size exceeded
    at findChainedImport (/Users/dror/.nvm/versions/node/v20.16.0/lib/node_modules/sol2uml/lib/associations.js:112:27)
    at findAssociatedClass (/Users/dror/.nvm/versions/node/v20.16.0/lib/node_modules/sol2uml/lib/associations.js:19:26)
    at findChainedImport (/Users/dror/.nvm/versions/node/v20.16.0/lib/node_modules/sol2uml/lib/associations.js:133:58)
    ...

This happens even if the file was ignored manually
e.g.:
This works:

 $ sol2uml contracts/interfaces
Generated svg file /Users/dror/IdeaProjects/account-abstraction/classDiagram.svg

But removing an inherited interface:

 $ sol2uml contracts/interfaces/ -i INonceManager.sol
RangeError: Maximum call stack size exceeded
    at findChainedImport (/Users/dror/.nvm/versions/node/v20.16.0/lib/node_modules/sol2uml/lib/associations.js:112:27)
    at findAssociatedClass (/Users/dror/.nvm/versions/node/v20.16.0/lib/node_modules/sol2uml/lib/associations.js:19:26)

crashes...

Suggestion

• At a minimum, report the name of the missing file.
• Give an option to skip missing files (e.g. inherited library)