feat: add from_str for ChainKind (#192)

* ChainKind: implement from string error

* Fix from_str parser

* Fix clippy

near/omni-types/src/lib.rs

@@ -150,6 +150,14 @@ pub enum ChainKind {
     Base,
 }
 
+impl FromStr for ChainKind {
+    type Err = String;
+
+    fn from_str(s: &str) -> Result<ChainKind, Self::Err> {
+        near_sdk::serde_json::from_str(&format!("\"{s}\"")).map_err(stringify)
+    }
+}
+
 impl From<&OmniAddress> for ChainKind {
     fn from(input: &OmniAddress) -> Self {
         input.get_chain()

near/omni-types/src/tests/lib_test.rs

@@ -456,3 +456,12 @@ fn test_get_evm_token_prefix() {
         );
     }
 }
+
+#[test]
+fn test_chain_kind_from_str() {
+    let chain: ChainKind = "Eth".parse().unwrap();
+    assert_eq!(chain, ChainKind::Eth);
+
+    let chain: ChainKind = "Base".parse().unwrap();
+    assert_eq!(chain, ChainKind::Base);
+}