Introducing new pipeline for LTE TDD 2x2 in container

Following changes are made:

1. Removed XMLs used in old pipeline lte-OAIEPC
2. Added TM1 and TM2 config, XML and YAML
3. Added pipeline details in TestBenches.md
4. Modification in Jenkins file for the pipeline
5. Added ping/iperf test cases in XML
6. Minor modification in cls_containerize.py and cls_oaicitest.py

ci-scripts/yaml_files/lte_n3xx_tdd_2x2_tm1/docker-compose.yml

@@ -0,0 +1,18 @@
+version: '3.8'
+services:
+    oai-enb:
+        image: oai-enb:latest
+        privileged: true
+        container_name: oai-enb
+        environment:
+            TZ: Europe/Paris
+            USE_VOLUMED_CONF: 'yes'
+            USE_ADDITIONAL_OPTIONS: --usrp-tx-thread-config 1 --thread-pool 0,2,4,6
+        volumes:
+            - ../../conf_files/enb.band38.lte_2x2.100PRB.usrpn310.conf:/opt/oai-enb/etc/mounted.conf
+        network_mode: "host"
+        healthcheck:
+            test: /bin/bash -c "pgrep lte-softmodem"
+            interval: 10s
+            timeout: 5s
+            retries: 5

ci-scripts/yaml_files/lte_n3xx_tdd_2x2_tm2/docker-compose.yml

@@ -0,0 +1,18 @@
+version: '3.8'
+services:
+    oai-enb:
+        image: oai-enb:latest
+        privileged: true
+        container_name: oai-enb
+        environment:
+            TZ: Europe/Paris
+            USE_VOLUMED_CONF: 'yes'
+            USE_ADDITIONAL_OPTIONS: --usrp-tx-thread-config 1 --thread-pool 0,2,4,6
+        volumes:
+            - ../../conf_files/enb.band38.lte_2x2_tm2.100PRB.usrpn310.conf:/opt/oai-enb/etc/mounted.conf
+        network_mode: "host"
+        healthcheck:
+            test: /bin/bash -c "pgrep lte-softmodem"
+            interval: 10s
+            timeout: 5s
+            retries: 5