Run gitinfo.bat in prebuild event

To (re)generate git_branch.h and git_hash.h every build
14 jobs for dailybuild_linux-x64 in 9 minutes and 52 seconds (queued for 12 seconds)
Status Name Job ID Coverage
  Build
passed jsdoor-freebsd #35627
FreeBSD

00:03:49

passed jsdoor-linux #35628
Linux

00:06:36

passed jsdoor-windows #35630
FreeBSD

00:01:55

passed sbbs-freebsd #35622
FreeBSD

00:05:22

passed sbbs-linux #35617
Linux

00:09:46

passed sbbs-windows #35620
Windows

00:05:07

passed sexpots-freebsd #35629
FreeBSD

00:00:11

passed sexpots-linux #35618
Linux

00:00:19

passed sexpots-windows #35621
Windows

00:00:23

passed syncdraw-freebsd #35625
FreeBSD

00:00:25

passed syncdraw-linux #35626
Linux

00:01:00

passed syncterm-freebsd #35623
FreeBSD

00:01:00

passed syncterm-linux #35619
Linux

00:02:53

passed syncterm-windows #35624
FreeBSD

00:01:45