S. VenkataKeerthy

We will fall back to iterative solutions with varying number of iterations if Eigen is not available

Set an attribute for function args of type enum

Please find more details on the steps to upgrade LLVM [here](https://github.com/IITH-Compilers/IR2Vec/wiki/version_upgrade_process)

Currently we have a vocab of 300D. Add support for using vocab of different sizes - 75D, 100D, 150D, etc. This would involve training the vocab and exposing options to...