Provide a generic to http put method

[alallema]

Pull Request

What does this PR do?

Most of the methods had to use the jsonHandler after the call to the put method through the client. The purpose of this PR is to bypass this step to simplify the call to the put method via the client:

    Task updateDocuments(String uid, String document)
            throws MeilisearchException {
        String urlPath = "/indexes/" + uid + "/documents";
        Task task = httpClient.jsonHandler.decode(httpClient.put(urlPath, document), Task.class);

        return task;
    }

became

    Task updateDocuments(String uid, String document)
            throws MeilisearchException {
        String urlPath = "/indexes/" + uid + "/documents";
        return httpClient.put(urlPath, document, Task.class);
    }