add: foundry integration

[bahadylbekov]

Hi, we've recently discussed with @emmanuelm41 about adding support for the foundry framework into filecoin-solidity library. As more developers use foundry nowadays and it doesn't have support for npm modules (because foundry uses submodules), it would make integration easier. I recently tried to integrate filecoin-solidity into our foundry-based repo, and it required importing every dependency into the root repo. I hope this PR could improve the integration process. Cheers

🔗 zboto Link

[emmanuelm41]

First of all, thank you so much for the contribution. We really appreciate the effort! We are currently checking internally the process to add new contributors and their work. I will come back soon with some news, but the PR looks great so far!
@bahadylbekov

[CLAassistant]

All committers have signed the CLA.

[emmanuelm41]

@bahadylbekov I am reviewing the PR, and I think it is ok. I have only one question. Is this remapping.txt file necessary for foundry projects? Is the name correct?

[bahadylbekov]

@bahadylbekov I am reviewing the PR, and I think it is ok. I have only one question. Is this remapping.txt file necessary for foundry projects? Is the name correct?

@emmanuelm41 remappings.txt links submodules from the lib folder in a way that doesn't require you to specify the exact path to the module. For example, without remappings an import of CBOR.sol contract from solidity-cborutils module would be like: lib/solidity-cborutils/contracts/CBOR.sol. By having remappings the imports stay the same like here. I hope this helps 🙃