Pass as arguments the conclusion & halting strategies for the moderator

[mfainstein]

These are the current conclusion and halting strategies:
export const HALTING_STRATEGIES = {
MAJORITY_CONSENSUS: "Consensus",
MAX_ARGUMENTS: "MaxArguments",
}
export const CONCLUSION_STRATEGIES = {
SHORT: "Short",
LONG: "Long",
NONE: "None"
}
Add an ability to add them as parameters when running node index.js (maybe turn this into a simple cli for this purpose with --help)