Add test command to verify version collisions do not occur (#2272)

* Add test command to verify version collisions do not occur
* add max_allowable_version to schema and lock flow
* add max_allowable_version to all entries in version.lock
* add test-version-lock command
* use min supported stack if > locked min stack
* share lock conversion code with rule and lock to fix M.m bug

detection_rules/semver.py

@@ -29,3 +29,8 @@ class Version(tuple):
                 recovered_str += "." + str(additional)
 
         return recovered_str
+
+
+def max_versions(*versions: str) -> str:
+    """Return the max versioned string."""
+    return str(max([Version(v) for v in versions]))