[net] Added SetSocketNoDelay() utility function

Summary: This is a backport of core PR10061

Test Plan:

make check

Cross compile on win32 to make sure it still works as expected.

Reviewers: #bitcoin_abc, jasonbcox

Reviewed By: #bitcoin_abc, jasonbcox

Subscribers: jasonbcox, teamcity

Differential Revision: https://reviews.bitcoinabc.org/D1871