SIENTIAPDE-1811

Enhance OPC UA communication and metrics tracking

- Updated README.md to include new OPC UA Communication section and detailed metrics for session and write diagnostics.
- Added new metrics in laborious/metrics.py for tracking OPC UA session states and write attempts.
- Refactored OPC activity in laborious/activities/opc.py to handle session errors and improve error reporting.
- Updated e2e tests to cover new scenarios for OPC session/channel errors and reconnect handling.
- Modified .gitignore to include relatorio files and mlruns directory.
- Added ipykernel to requirements-dev.txt for Jupyter notebook support.

inter_arrival.py

@@ -0,0 +1,25 @@
+# %%
+
+# Load logs.txt
+with open('logs.txt', 'r') as file:
+    lines = file.readlines()
+
+# %%
+import re
+# Grep "inter-arrival_s=number" with regex
+intervals = []
+for line in lines:
+    match = re.search(r'inter-arrival_s=([0-9.]+)', line)
+    if match:
+        intervals.append(float(match.group(1)))
+# %%
+
+print(intervals)
+# %%
+import matplotlib.pyplot as plt
+plt.plot(intervals)
+plt.ylabel('Inter-arrival time (s)')
+plt.xlabel('Sample')
+plt.title('Inter-arrival time distribution')
+plt.show()
+# %%