ERL-1040: Allow any term for httpc profile

[OTP-Maintainer]

Original reporter: vances Affected version: Not Specified Component: inets Migrated from: https://bugs.erlang.org/browse/ERL-1040

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Multiple instances of {{httpc_manager}} may be started, each of which has it's own set of options ({{profile}}) to be used in requests. These may be started and stopped dynamically during run time.

Currently the type for profile is {{atom()}}. This is a problem if an application will dynamically start and stop {{httpc}} with a unique {{profile}} for each as the atom table isn't garbage collected.