move around files

Signed-off-by: Jess Frazelle <github@jessfraz.com>

kittycad/models/environment.py

@@ -0,0 +1,10 @@
+from enum import Enum
+
+
+class Environment(str, Enum):
+    DEVELOPMENT = "DEVELOPMENT"
+    PREVIEW = "PREVIEW"
+    PRODUCTION = "PRODUCTION"
+
+    def __str__(self) -> str:
+        return str(self.value)