End to end test runner (#281)

Build fission-bundle and fission cli. Install the fission-bundle using
the fission-all helm chart. Run all files matching test_*.sh from the
tests/ directory.

This change doesn't contain any real tests, just the build and test
runner scripts.

Skips the tests when there are no cluster credentials available.

test/test.sh

@@ -1,59 +0,0 @@
-#!/bin/sh
-
-set -euo pipefail
-
-generate_test_id() {
-    echo $(date|md5|cut -c1-6)
-}
-
-helm_install_fission() {    
-    id=$1
-    image=$2
-    imageTag=$3
-    controllerNodeport=$4
-    routerNodeport=$5
-
-    ns=f-$id
-    fns=f-func-$id
-
-    helmVars=image=$image,imageTag=$imageTag,namespace=$ns,functionNamespace=$fns,controllerPort=$controllerNodeport,routerPort=$routerNodeport
-
-    echo "Installing fission"
-    helm install		\
-	 --wait			\
-	 --name $id		\
-	 --set $helmVars	\
-	 ../charts/fission
-}
-
-helm_uninstall_fission() {
-    echo "Uninstalling fission"
-    helm delete $1
-}
-
-run_all_tests() {
-    echo "Here is where our tests will go"
-}
-
-install_and_test() {
-    image=$1
-    imageTag=$2
-
-    controllerPort=31234
-    routerPort=31235
-    
-    id=$(generate_test_id)
-    trap "helm_uninstall_fission $id" EXIT
-    helm_install_fission $id $image $imageTag $controllerPort $routerPort 
-
-    run_all_tests $controllerPort $routerPort
-}
-
-
-if [ $# -lt 2 ]
-then
-    echo "Usage: test.sh [image] [imageTag]"
-    exit 1
-fi
-
-install_and_test $1 $2