Add to_string and from_string methods to network types

src/network.rs

@@ -105,6 +105,10 @@ impl CipherMessage {
             error: None,
         }
     }
+
+    pub fn to_string(&self) -> String {
+        serde_json::to_string(self).unwrap()
+    }
 }
 
 #[derive(Debug, Serialize, Deserialize, Tsify)]
@@ -121,6 +125,15 @@ impl AnkNetworkMsg {
             content: raw.into(),
         }
     }
+
+    pub fn from_string(json: &str) -> Result<Self> {
+        let res: Self = serde_json::from_str(json)?;
+        Ok(res)
+    }
+
+    pub fn to_string(&self) -> String {
+        serde_json::to_string(self).unwrap()
+    }
 }
 
 #[derive(Debug, Default, Serialize, Deserialize, PartialEq, Tsify, Clone)]
@@ -178,6 +191,15 @@ impl CachedMessage {
         new
     }
 
+    pub fn from_string(json: &str) -> Result<Self> {
+        let res = serde_json::from_str(json)?;
+        Ok(res)
+    }
+
+    pub fn to_string(&self) -> String {
+        serde_json::to_string(self).unwrap()
+    }
+
     pub fn try_decrypt_cipher(&self, cipher: Vec<u8>) -> Result<Vec<u8>> {
         if self.ciphertext.is_some() || self.shared_secret.is_none() {
             return Err(Error::msg(