R: Vignettes and other documentation

# Vignettes and other documentation

## Vignettes from package 'openfhe.R'

openfhe.R::binfhe-boolean-circuits |  | BinFHE: Boolean Circuits and Arbitrary Functions on Encrypted Bits | HTML | source | R code
openfhe.R::ckks-bootstrapping |  | CKKS Bootstrapping: Refreshing Deep Circuits | HTML | source | R code
openfhe.R::introduction |  | Introduction to openfhe.R: Fully Homomorphic Encryption in R | HTML | source | R code