Api#resourceByAssetID does not support same options as in documentation

## Bug report for Cloudinary Java SDK
Before proceeding, please update to latest version and test if the issue persists

## Describe the bug in a sentence or two.
It seems that Api#resourceByAssetID does not support same parameters as describe in documentation.
In [Cloudinary Api Docs ](https://cloudinary.com/documentation/admin_api#get_details_of_a_single_resource_by_assetid_syntax). E.g image_metadata is described as supported option. Thus, i would expect that
` cloudinary.api().resourceByAssetID(asset.asset_id(), Map.of("image_metadata", true))` would result in `GET /v1_1//resources/?image_metadata=true`. But actually it results in `/v1_1//resources/` without 'image_metadata' parameter.

Api#resourceByAssetID implementation does not match configuration options in documentation.
```java
public ApiResponse resourceByAssetID(String assetId, Map options) throws Exception {
if (options == null) options = ObjectUtils.emptyMap();
if(options.get("fields") != null) {
options.put("fields", StringUtils.join(ObjectUtils.asArray(options.get("fields")), ","));
}
Map params = ObjectUtils.only(options, "tags", "context", "moderations", "fields");
ApiResponse response = callApi(HttpMethod.GET, Arrays.asList("resources", assetId), params, options);
return response;
}
```

Since with simple curl the api responds with expected image metadata included my guess is that the java implementation is too restrictive.

## Issue Type (Can be multiple)
[ ] Build - Can’t install or import the SDK
[ ] Performance - Performance issues
[x ] Behaviour - Functions aren’t working as expected (Such as generate URL)
[ ] Documentation - Inconsistency between the docs and behaviour
[ ] Other (Specify)

## Steps to reproduce
… if applicable

## Error screenshots or Stack Trace (if applicable)
…

## Build System
[ ] Maven
[x ] Gradle
[ ] Other (Specify)

## OS (Please specify version)
[ ] Windows
[ ] Linux
[ ] Mac
[ ] Other (specify)

## Versions and Libraries (fill in the version numbers)
Cloudinary Java SDK version - 2.0.0
JVM (dev environment) - 0.0.0
JVM (production environment) - 0.0.0
Maven - 0.0.0 / N/A
Gradle - 0.0.0 / N/A

## Repository
If possible, please provide a link to a reproducible repository that showcases the problem