GSF.Communication: Updated TlsClient on Mono builds to default to Tls1.2 since newer builds of Mono support this.
GSF.Communication: Updated TlsClient on Mono builds to default to Tls1.2 since newer builds of Mono support this.

GridProtectionAlliance/gsf,GridProtectionAlliance/gsf,GridProtectionAlliance/gsf,GridProtectionAlliance/gsf,GridProtectionAlliance/gsf,GridProtectionAlliance/gsf,GridProtectionAlliance/gsf,GridProtectionAlliance/gsf