Dynamic pagination for _get_groups and _get_objects

[RasmusThing]

Remove the size and page variables for the _get_groups and _get_objects functions and add dynamic pagination in the library itself.

This will avoid users of the library to make duplicate code to paginate the endpoints themselves.

It's even written in the library as a TODO :)
# TODO add dynamic paging?

[RasmusThing]

This should do the trick.
`def _get_groups(self, url, filter: str = None):
"""
Get generic group lists.

:param url: Base URL for requesting lists
:return: result dictionary
"""
result = {
    "success": False,
    "response": "",
    "error": "",
}

self.ise.headers.update(
    {"Accept": "application/json", "Content-Type": "application/json"}
)

f = furl(url)
# Max resources per page cannot be more then 100 resources.
f.args["size"] = 100
# TODO add filter valication
if filter:
    f.args["filter"] = filter

resp = self.ise.get(f.url, timeout=self.timeout)

if resp.status_code == 200:
    result["success"] = True
    result["total"] = resp.json()["SearchResult"]["total"]
    result["response"] = []
    for page in range(1, int((result["total"] / f.args["size"] + 1) + 1)):
        f.args["page"] = page
        resp = self.ise.get(f.url, timeout=self.timeout)
        if resp.status_code == 200:
            result["response"] += [
                (i["name"], i["id"], i["description"])
                for i in resp.json()["SearchResult"]["resources"]
            ]
    return result

else:
    return ERS._pass_ersresponse(result, resp)

def _get_objects(self, url, filter: str = None):
"""
Generic method for requesting objects lists.

:param url: Base URL for requesting lists
:param filter: argument side of a ERS filter string. Default: None
:return: result dictionary
"""
result = {
    "success": False,
    "response": "",
    "error": "",
}

self.ise.headers.update(
    {"Accept": "application/json", "Content-Type": "application/json"}
)

f = furl(url)
# Max resources per page cannot be more then 100 resources.
f.args["size"] = 100
# TODO add filter valication
if filter:
    f.args["filter"] = filter

resp = self.ise.get(f.url, timeout=self.timeout)

if resp.status_code == 200:
    json_res = resp.json()["SearchResult"]

    if int(json_res["total"]) >= 1:
        result["success"] = True
        result["total"] = json_res["total"]
        result["response"] = []
        for page in range(1, int((result["total"] / f.args["size"] + 1) + 1)):
            f.args["page"] = page
            resp = self.ise.get(f.url, timeout=self.timeout)
            if resp.status_code == 200:
                json_res = resp.json()["SearchResult"]
                result["response"] += [
                    (i["name"], i["id"]) for i in json_res["resources"]
                ]
        return result

    elif int(json_res["total"]) == 0:
        result["success"] = True
        result["response"] = []
        result["total"] = json_res["total"]
        return result
else:
    return ERS._pass_ersresponse(result, resp)`

[falkowich]

Hi,

Thanks for the code!
Is it possible that you can and/or have the time to do a PR?

If not, I'll create a PR myself with the changes.
Again, thanks for the help :)

--
Kind Regards Falk