Adding initial code for Suzurubooru client

Cargo.toml

@@ -0,0 +1,25 @@
+[package]
+name = "szurubooru-client"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+base64 = "0.22.1"
+bytes = "1.6.1"
+chrono = { version = "0.4.38", features = ["serde"] }
+derive_builder = "0.20.0"
+hex = "0.4.3"
+reqwest = { version = "0.12.5", features = ["json", "multipart"] }
+serde = { version = "1.0.204", features = ["derive"] }
+serde_json = "1.0.120"
+sha1 = "0.10.6"
+strum = { version = "0.26.3", features = ["derive", "strum_macros"] }
+strum_macros = "0.26.4"
+thiserror = "1.0.63"
+tracing = "0.1.40"
+url = "2.5.2"
+urlencoding = "2.1.3"
+
+[dev-dependencies]
+mockito = "1.4.0"
+tokio = { version = "1.39.2", features = ["full"] }