[ENHANCEMENT] Add database selection for Performance monitor

[weafert]

Add database select for performance monitor

Thank you very much

[lorenzobruni]

Add the following key to the Web.config and set the value of API_PERFORMANCE_DATABASE to the chosen connectionString

<!-- Performance - Choose the Database connection string where to store the records -->
<add key="API_PERFORMANCE_DATABASE" value="defaultConnection" />

@weafert this will be available in the next 4.4.1 release. Cheers :-)

[lorenzobruni]

Implemented in Release 4.4.1 https://github.com/CSOIreland/Server-API-Library/releases/tag/4.4.1