Added doc/diameter-sxover.md

 - Explaining SXOVER mechanism and components
 - Running freeDiameter with sxover.sxd component to server a realm
 - Using the same or another freeDiameter to serve a foreign server
 - Using a library to connect to freeDiameter from a foreign server
1 job for cyrus-test-rename-diameter.sxover in 3 minutes and 59 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
failed #659037104
CMakeCTest

00:03:59

 
Name Stage Failure
failed
CMakeCTest Build
	 19 - t_freediameter (Failed)
Errors while running CTest

Error exit value 8
Uploading artifacts for failed job
Uploading artifacts...
ctest.*: found 1 matching files and directories

Uploading artifacts as "archive" to coordinator... ok
id=659037104 responseStatus=201 Created token=7GJZkzim
ERROR: Job failed: exit code 1