Add IP throttling exception for an Indian Wikipedia workshop

I am assuming that this system actually works. I found that
the previous itwiki GLAM event was written to a variable
"$wmfThrottlingExceptions", when it should have been
"$wmgThrottlingExceptions". Presumably this fault should have
been noticed, which makes me worry that this throttle override
system is totally broken.

Bug: 53218
Change-Id: I1f5b30f95050534ba95cb906e247afe626855e20