Send email on all executions configuration

The configs for sending email on trades is in KodiakOrderEntryServer/Config/Environment/appSettings.config.

To send email to the customer when client orders are matched (a trade is made), set
<add key="OrderPostProcessor.SendEmailOnTrades" value="true" />
and set the email subject <add key="OrderPostProcessor.TradeEmailSubject" value="TEST - New Trade in Kodiak OMS" />.

To send email when a trade report is sent, set <add key="TradeReportOrderEntry.SendEmailOnTrades" value="true" />
Email address:
<add key="TradeReportOrderEntry.TradeEmailAddress" value="example@email.com" />
Email subject:
<add key="TradeReportOrderEntry.TradeEmailSubject" value="TEST - New Trade Report in Kodiak OMS" />