ci(travis): adding FSC integration (#31)

Author: msohailhussain

.travis.yml

@@ -1,11 +1,25 @@
 language: go
-
 go:
   - 1.12.x
   - master
-
 git:
   depth: 1
-
 script:
   - go test -v -race ./...
+stages:
+  - 'Integration tests'
+  - 'Test'
+jobs:
+  include:
+    - stage: 'Integration Tests'
+      merge_mode: replace
+      env: SDK=go
+      cache: false
+      language: minimal
+      install: skip
+      before_script:
+        - mkdir $HOME/travisci-tools && pushd $HOME/travisci-tools && git init && git pull https://[email protected]/optimizely/travisci-tools.git && popd
+      script:
+        - "$HOME/travisci-tools/fsc-trigger/trigger_fullstack-sdk-compat.sh"
+      after_success: travis_terminate 0
+