update backend to get instance for eqsn

Author: benjione

backends/eqsn_backend.py

@@ -117,7 +117,7 @@ def __init__(self):
         self._hosts = EQSNBackend.Hosts.get_instance()
         # keys are from : to, where from is the host calling create EPR
         self._entaglement_qubits = EQSNBackend.EntanglementIDs.get_instance()
-        self.eqsn = EQSN()
+        self.eqsn = EQSN.get_instance()
 
     def start(self, **kwargs):
         """

requirements.txt

@@ -3,4 +3,4 @@ networkx==2.4
 nose2==0.9.1
 numpy==1.18.1
 projectq==0.4.2
-eqsn==0.0.4
+eqsn==0.0.5