Docs for SERVER-27264: With net.ssl.allowConnectionsWithoutCertificates: true, allow disabling no client certificate log warnings

Description:

Added a new boolean setParameter "suppressNoTLSPeerCertificateWarning" that disables the warning that is logged when no client certificates are provided. Default is set to false.

Scope of changes:

Impact to other docs outside of this product:

MVP:

Resources:

Engineering Ticket Description:

When net.ssl.allowConnectionsWithoutCertificates: true every client connection using no SSL certificate produces a warning message in the log:

2016-XX-XXTXX:XX:XX.XXX+0000 W NETWORK [connXXXX] no SSL certificate provided by peer

It would be nice if it is possible to suppress those warnings, as SSL connections with no client certificates are enabled explicitly by setting net.ssl.allowConnectionsWithoutCertificates: true.