Added gitignore rules to files which are generated after running the mkbuild script.

- This helps make sure that the build files don't get tracked in the git tracker.
2 jobs from master in 33 minutes 41 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build Hamara Sugam Amd64
passed #1045
allowed to fail
build-hamara-sugam-amd64

16:11

 
  Build Hamara Sugam I386
passed #1046
build-hamara-sugam-i386

17:30