Elixir NIF's for Rust functions

Currently interfaces with implied_vol::{implied_black_volatility, implied_normal_volatility} and black_scholes::compute_all
see tests for usage

Name		Name	Last commit message	Last commit date
Latest commit History 6 Commits
lib		lib
native/niffunction		native/niffunction
priv/native		priv/native
test		test
.formatter.exs		.formatter.exs
.gitignore		.gitignore
README.md		README.md
mix.exs		mix.exs
mix.lock		mix.lock

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