Add eclipse project files to .gitignore
Add eclipse project files to .gitignore

Like some of the other projects (nova, heat, oslo, cinder) git ignore
eclipse project files. This will remove manual steps for people
developing from eclipse.

Change-Id: Ib908c8d419072b440f5ec647bea8f13b97e48f7c

ozamiatin/glance,paramite/glance,darren-wang/gl,sigmavirus24/glance,dims/glance,JioCloud/glance,klmitch/glance,wkoathp/glance,akash1808/glance,rajalokan/glance,takeshineshiro/glance,rajalokan/glance,redhat-openstack/glance,openstack/glance,openstack/glance,paramite/glance,tanglei528/glance,wkoathp/glance,scripnichenko/glance,tanglei528/glance,openstack/glance,kfwang/Glance-OVA-OVF,ozamiatin/glance,akash1808/glance,stevelle/glance,vuntz/glance,saeki-masaki/glance,stevelle/glance,dims/glance,JioCloud/glance,klmitch/glance,kfwang/Glance-OVA-OVF,vuntz/glance,takeshineshiro/glance,sigmavirus24/glance,jumpstarter-io/glance,saeki-masaki/glance,jumpstarter-io/glance,darren-wang/gl,redhat-openstack/glance,scripnichenko/glance