TST: Add CI for RMS testing

ci/jenkins/Jenkinsfile

@@ -0,0 +1,34 @@
+pipeline {
+    agent { label 'scout-ci7' }
+    environment {
+        WORKING_DIR = sh(script: 'pwd', , returnStdout: true).trim()
+    }
+    stages {
+        stage('test') {
+            steps {
+                sh '''
+                  source /opt/rh/devtoolset-9/enable
+                  git clone --depth=1 https://github.com/equinor/xtgeo-testdata
+                  set +e
+                  source $ROXENVBASH $RMS_VERSION
+                  set -e
+                  unset PYTHONPATH
+                  python -m virtualenv xtgeo_env --system-site-packages
+                  source xtgeo_env/bin/activate
+                  pip install -r requirements/requirements.txt
+                  pip install -r requirements/requirements_dev.txt
+                  pip install -r requirements/requirements_test.txt
+                  pip install . --ignore-installed
+                  export XTG_TESTPATH=./xtgeo-testdata/
+                  python -m pytest -m requires_roxar
+                '''
+            }
+        }
+    }
+
+    post {
+        cleanup {
+            deleteDir()
+        }
+    }
+}