(WIP) Use dynamic IPv4 network pools for deploy clusters (#18)

*     Use dynamic IPv4 network pools for deploy clusters

    - Use 'config' object as an additional jinja option to load templates
    - Use 'address_pools' from 'config' object in
      virtual-mcp11-ovs and virtual-mcp11-dvr
    - Fill 'address_pools' in 'config' object from fuel-devops manager

*     Use dynamic IPv4 network pools for deploy clusters

    - Use 'config' object as an additional jinja option to load templates
    - Use 'address_pools' from 'config' object in
      virtual-mcp11-ovs and virtual-mcp11-dvr
    - Fill 'address_pools' in 'config' object from fuel-devops manager

* return removed 'test_install_k8s'

* Use 'sed' to replace IP addresses in the models to pre-generated

also, two new environment variables avaliable for mcp11-ovs/dvr:
- SALT_MODELS_REPOSITORY
- SALT_MODELS_COMMIT

* remove temporary env_config.py.bak
diff --git a/tcp_tests/templates/openstack/virtual-mcp11-dvr-openstack.yaml b/tcp_tests/templates/openstack/virtual-mcp11-dvr-openstack.yaml
index e518976..356ed7c 100644
--- a/tcp_tests/templates/openstack/virtual-mcp11-dvr-openstack.yaml
+++ b/tcp_tests/templates/openstack/virtual-mcp11-dvr-openstack.yaml
@@ -1,4 +1,4 @@
-{% from 'virtual-mcp11-dvr.jinja' import HOSTNAME_CFG01 with context %}
+{% from 'underlay/virtual-mcp11-dvr.yaml' import HOSTNAME_CFG01 with context %}
 
 # Install OpenStack control services