Make "process" a required input and configure pyconf functions globally once with user input

Closes #59 (closed) and closes #74 (closed).

• Make process a required input.
• Make "options.process" as the default input to algorithms (e.g. truth matching).
• Make process a required input to truth-matching algorithm (related to issue: #62 (closed)) and also set correct root-in-tes for Turbo process.

To be tested with: LHCb!3806 (merged), Moore!1812 (merged) and Analysis!914 (merged)

Phys/DaVinci/python/DaVinci/truth_matching.py

@@ -57,7 +57,7 @@ def configured_MCTruthAndBkgCatAlg(
     """
 
     if not root_in_tes:
-      root_in_tes = get_stream()
+        root_in_tes = get_stream()
 
     # No algorithm is asking for mc particles and proto particles explicitely
     # But pp2mcp relation unpacker needs them, so give them as extra_inputs