iks: default port to 9002

+ default proxy location port to 9002
iks: continue after config error

+ in case of config error print message and continue
iks: connecting to probes server

+ init probes server connection while constructing szbase location
+ probes server address and port can be configured in .ini file (sample
  updated) but defaults to localhost:8090
iks: get actual data from SZARP

+ Vars class gets data from SZARP every 10 seconds and set it to
  proper Param object
iks: send values to client

+ send data from SZARP to connected client
! currently set subscribe is not available so all data are sent to client