Add run_all build stage

Author: ashwinimurt

.gitlab-ci.yml

@@ -1,7 +1,19 @@
 stages:
+- runall
 - build
 - collate
 
+# This is just a config to help trigger rest of the builds
+run_all_builds:
+  image: ubuntu:latest
+  stage: runall
+  variables:
+    GIT_STRATEGY: none
+  script:
+  - pwd
+  when: manual
+  allow_failure: false
+
 # Build
 build_osx_runtime:
   stage: build