adds changelog and bump version

CHANGELOG.md

@@ -0,0 +1,21 @@
+# Changelog
+
+### 0.2.0
+features:
+- adds the ability to use a binary as the body of a request. The api has changed:
+
+**before**
+```rust
+let body: Option<String> = None;
+bridge.request(RequestType::rest(body, Method::GET)).send();
+```
+
+**now**
+
+```rust
+RestRequest::new(&bridge).send();
+// OR
+Request::rest(&bridge).send()
+```
+
+The old API is still available but deprecated. It will be removed soon.

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "prima_bridge"
-version = "0.1.7"
+version = "0.2.0"
 authors = ["Matteo Giachino <[email protected]>"]
 edition = "2018"
 license = "MIT"