adapter - add reqwest

Author: elpiel

Cargo.lock

@@ -21,6 +21,9 @@ tiny-keccak = "1.5"
 parity-crypto = { version = "0.4.2", features = ["publickey"] }
 ethstore = { version = "0.2.1", git = "https://github.com/elpiel/parity-ethereum"}
 ethkey = { version = "0.4.0", git = "https://github.com/elpiel/parity-ethereum"}
+# API client
+reqwest = { version = "0.10", features = ["json"] }
+
 sha2 = "0.8.0"
 base64 = "0.10.1"
 lazy_static = "1.4.0"