Add support for the OTP socket interface

[fadushin]

This PR adds limited support for the OTP socket interface, which exposes APIs for low-level socket operations, as defined in OTP 22 and later. This implementation aims to be API-compatible with the OTP implementation, though many parts of the interface have yet to be implemented.

Key features of this implementation include the following:

• A new socket driver has been added, which uses the BSD socket interfaces
• This driver is supported on generic UNIX and ESP32 platforms. Where possible, a common codebase is used, to minimize the cost of maintenance.
• Currently, the driver support a core set of operations to support TCP connections, including:
  • socket:open/1
  • close/1
  • bind/2
  • listen/1,2
  • accept/1
  • sockname/1
  • peername
  • recv/1
  • send/2
  • setopt/3
  • connect/2

These changes are made under both the "Apache 2.0" and the "GNU Lesser General Public License 2.1 or later" license terms (dual license).

SPDX-License-Identifier: Apache-2.0 OR LGPL-2.1-or-later