Add oracle bento boxes to vagrant testing

Author: artem-sidorenko

.kitchen.vagrant.yml

@@ -12,6 +12,8 @@ platforms:
 - name: ubuntu-16.04
 - name: centos-6.8
 - name: centos-7.3
+- name: oracle-6.8
+- name: oracle-7.3
 - name: debian-7.11
 - name: debian-8.6
 - name: fedora-24
@@ -35,6 +37,8 @@ suites:
     - centos-7.3
     - fedora-24
     - fedora-25
+    - oracle-6.8
+    - oracle-7.3
   driver:
     provision: true
     vagrantfiles: