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)

DaVinciExamples/example_data/Upgrade_Bd2KstarMuMu_ldst.yaml

@@ -5,3 +5,4 @@ input_type: ROOT
 simulation: true
 conddb_tag: sim-20171127-vc-md100
 dddb_tag: dddb-20171126
+process: Turbo
\ No newline at end of file