[FR] Configure timeout for SendToHTTP commands group

[tonhuisman]

Is your feature request related to a problem? Please describe.
As requested here: #5358 (comment)

When an external host is unreachable, the default HTTP time-out causes high CPU-Load on the unit. A shorter time-out would be helpful here.

Current defaults:

• With SentToHTTP wait for ack setting _dis_abled: 1000 msec
• With SentToHTTP wait for ack setting _en_abled: 4000 msec

Describe the solution you'd like
For the SendToHTTP/PostToHTTP/PutToHTTP commands, a configurable max. time-out setting

Describe alternatives you've considered
TBD

[TD-er]

We plan on making the connect calls to hosts from controllers (and maybe also the send tohttp command as it shares a lot of the same code) into separate RTOS threads (so only ESP32 as you can't run separate threads on ESP8266 NONOS)
The problem is even worse with connecting to a non-responsive MQTT broker.
Or -in a purely hypothetical situation- when trying to connect to a host on the other side of the world using a LTE modem in the mountains of Bhutan.