Create local instance with local image

- Prepare the launch_cvd cmd and check the required enviornment.
- Create local instance via launch_cvd cmd and wait for boot up.
- Launch vnc client after AVD boot up.

Bug: 111162251
Test: m acloud && atest acloud_test &&
acloud create --local_instance --local_image -vv
Change-Id: I73461b023c444c1ebb29818eef4475bbf86a4200
diff --git a/internal/constants.py b/internal/constants.py
index e64c6ba..d3479ac 100755
--- a/internal/constants.py
+++ b/internal/constants.py
@@ -86,3 +86,10 @@
 HW_Y_RES = "y_res"
 
 USER_ANSWER_YES = {"y", "yes", "Y"}
+
+# Cuttlefish groups
+LIST_CF_USER_GROUPS = ["kvm", "libvirt", "cvdnetwork"]
+
+VNC_PORT = "6444"
+
+ENV_ANDROID_BUILD_TOP = "ANDROID_BUILD_TOP"