First support for testing containers.

The new engines are created.
container.py is used for manipulation with containers w/o S2I support.
s2i_container.py is used for manipulation with containers with s2i support.
Podman Wrapper is used for working with podman / docker binaries

Signed-off-by: Petr "Stone" Hracek <phracek@redhat.com>

README.md

@@ -21,15 +21,15 @@ import os
 
 import pytest
 
-from container_ci_suite.api import ContainerCISuite
+from container_ci_suite.container import ContainerAPI
 
 image_name = os.environ.get("IMAGE_NAME", "nginx-container")
 test_dir = os.path.abspath(os.path.dirname(__file__))
 
 
 class TestDummyImage(object):
     def test_s2i_usage(self):
-        ccs = ContainerCISuite(image_name=image_name)
+        ccs = ContainerAPI(image_name=image_name)
         ccs.s2i_usage()
 
 ```

container_ci_suite/api.py → container_ci_suite/container.py

@@ -49,7 +49,7 @@
 logger = logging.getLogger(__name__)
 
 
-class ContainerCISuite(object):
+class ContainerAPI(object):
     def __init__(self, image_name: str):
         self.image_name: str = image_name
         self.container_args: str = ""