feat: added startup script for setting up epics ca

bec_plugins/device_server/startup.py

@@ -0,0 +1,11 @@
+import os
+
+
+def setup_epics_ca():
+    os.environ["EPICS_CA_AUTO_ADDR_LIST"] = "NO"
+    os.environ["EPICS_CA_ADDR_LIST"] = "129.129.122.255 sls-x12sa-cagw.psi.ch:5836"
+    os.environ["PYTHONIOENCODING"] = "latin1"
+
+
+def run():
+    setup_epics_ca()