Add TINC support with CCP

TINC tests are planned to be migrated over to run natively in
Concourse using CCP. This commit adds the task and script files needed
to create the new TINC jobs.

concourse/scripts/run_tinc_test.sh

+#!/bin/bash
+
+TINC_TARGET=$@
+
+source /usr/local/greenplum-db-devel/greenplum_path.sh
+export PGPORT=5432
+export MASTER_DATA_DIRECTORY=/data/gpdata/master/gpseg-1
+export PGDATABASE=gptest
+createdb gptest
+createdb gpadmin
+cd /home/gpadmin/gpdb_src/src/test/tinc
+source tinc_env.sh
+make $@

concourse/tasks/run_tinc.yml

+platform: linux
+inputs:
+ - name: ccp_src
+ - name: cluster_env_files
+run:
+  path: bash
+  args:
+  - -c
+  - |
+    set -ex
+    ccp_src/aws/setup_ssh_to_cluster.sh
+    ssh -t mdw "bash /home/gpadmin/gpdb_src/concourse/scripts/run_tinc_test.sh \"$TINC_TARGET\""