modified the way custom services can be imported and added a test case to verify the import functionality

daemon/tests/myservices/sample.py

@@ -0,0 +1,27 @@
+"""
+Sample user-defined services for testing.
+"""
+
+from core.service import CoreService
+
+
+class MyService(CoreService):
+    _name = "MyService"
+    _group = "Utility"
+    _depends = ()
+    _dirs = ()
+    _configs = ('myservice.sh',)
+    _startindex = 50
+    _startup = ('sh myservice.sh',)
+    _shutdown = ()
+
+
+class MyService2(CoreService):
+    _name = "MyService2"
+    _group = "Utility"
+    _depends = ()
+    _dirs = ()
+    _configs = ('myservice.sh',)
+    _startindex = 50
+    _startup = ('sh myservice.sh',)
+    _shutdown = ()