First step in breaking out cloud.py

Move cloud.py to a module init. Move policy with it. Update related unit tests. Also adds a patch to state machine test to prevent randomness in mock from failing test.

script/include/test_functions.inc.sh

@@ -8,7 +8,7 @@ run_python_lint() {
 }
 
 run_python_typecheck() {
-  run_command "mypy --ignore-missing-imports --follow-imports=skip atst/domain/csp/cloud.py"
+  run_command "mypy --ignore-missing-imports --follow-imports=skip atst/domain/csp/cloud/__init__.py"
   return $?
 }