Enhance connection logic to source PI server during Interface startup
When PitoPi Interface starts up, it prints a message saying that it secured a connection with the Target or Host PI server as follows: PIAPI Successfully connected to <Target_PI_Server>:5450. Then it begins to load target PI points and it starts looking for the source PI point even if it doesn't have a connection to the source PI server. This will result in pipt_findpoint for source tag returned [-5] Tag Not Found
So this enhancement request is to handle situations when it doesn't have a connection to the source PI server at startup. If there are X number of points on the target, it will make X number of API calls to the Source PI server to find the source PI points.
Note: This was previously Enhancement 115864.