Add ark-std to patch

Author: autquis

Cargo.toml

@@ -32,6 +32,7 @@ ark-ff = { git = "https://github.com/arkworks-rs/algebra/" }
 ark-ec = { git = "https://github.com/arkworks-rs/algebra/" }
 ark-serialize = { git = "https://github.com/arkworks-rs/algebra/" }
 ark-poly = { git = "https://github.com/arkworks-rs/algebra/" }
+ark-std = { git = "https://github.com/arkworks-rs/std/" }
 
 ark-crypto-primitives = { git = "https://github.com/arkworks-rs/crypto-primitives" }
 ark-r1cs-std = { git = "https://github.com/arkworks-rs/r1cs-std/" }