Add a timeout to the api request in the plugin

[perllaghu]

the code line is get_req = partial(requests.get, url, headers=headers, cookies=cookies) [there are actually 3 options] has no timeout for the python requests method..... so if the exchange doesn't respond, the code has to wait for the http timeout (30+ seconds, depending on client & server combinations)

Timeouts can be added - see https://requests.readthedocs.io/en/latest/user/advanced/#timeouts:

• the connect timeout is the time for the remote server to response
• the read timeout is the time to wait for an established connection to send data.

.... the two values can be different

[there's also a question as to whether these timeouts should be configurable, to allow for adjustment in different deployment environments]