Add methodInfoResolver attribute to Coroutinebuilder (#1762)

* Add methodInfoResolver attribute to Coroutinebuilder

Work on the [feedback](#1754 (comment)) of PR #1754

kotlin/src/main/java/feign/kotlin/CoroutineFeign.java

@@ -19,6 +19,7 @@
 import feign.BaseBuilder;
 import feign.Client;
 import feign.Experimental;
+import feign.MethodInfoResolver;
 import feign.Target;
 import feign.Target.HardCodedTarget;
 import java.lang.reflect.InvocationHandler;
@@ -116,6 +117,7 @@ public static class CoroutineBuilder<C> extends BaseBuilder<CoroutineBuilder<C>>
     private AsyncContextSupplier<C> defaultContextSupplier = () -> null;
     private AsyncClient<C> client = new AsyncClient.Default<>(
         new Client.Default(null, null), LazyInitializedExecutorService.instance);
+    private MethodInfoResolver methodInfoResolver = KotlinMethodInfo::createInstance;
 
     @Deprecated
     public CoroutineBuilder<C> defaultContextSupplier(Supplier<C> supplier) {
@@ -133,6 +135,11 @@ public CoroutineBuilder<C> defaultContextSupplier(AsyncContextSupplier<C> suppli
       return this;
     }
 
+    public CoroutineBuilder<C> methodInfoResolver(MethodInfoResolver methodInfoResolver) {
+      this.methodInfoResolver = methodInfoResolver;
+      return this;
+    }
+
     public <T> T target(Class<T> apiType, String url) {
       return target(new HardCodedTarget<>(apiType, url));
     }
@@ -167,7 +174,7 @@ public CoroutineFeign<C> build() {
           .responseInterceptor(responseInterceptor)
           .invocationHandlerFactory(invocationHandlerFactory)
           .defaultContextSupplier((AsyncContextSupplier<Object>) defaultContextSupplier)
-          .methodInfoResolver(KotlinMethodInfo::createInstance)
+          .methodInfoResolver(methodInfoResolver)
           .build();
       return new CoroutineFeign<>(asyncFeign);
     }