List of things TODO to add margin trading

Files to edit
    freqtrade/freqtradebot.py
    freqtrade/wallets.py
    freqtrade/data/btanalysis.py
    configuration
    freqtrade/commands/deploy_commands.py
    freqtrade/commands/arguments.py
    freqtrade/strategy
    freqtrade/constants.py

Tests
    tests/test_persistence.pys
        init with 
            lev & bor
            lev
            bor
            neither lev nor bor
        adjust_stop_loss
            short
            leverage
        is_opening_trade
            short
            long
            shortBuy
            longSell
        is_closing_trade
            short
            long
            shortBuy
            longSell        
        update, close, update fee
            possible to test?    
        calc_profit
            * * create a few shorts, a few leveraged longs test correct ratio
        calc_profit_ratio
            * create a few shorts, a few leveraged longs test correct ratio
        get_open_trades 
            * create a short, check if exists

    tests/test_freqtradebot.py

later
    freqtrade/commands/build_config_commands.py
    freqtrade/commands/cli_options.py
    freqtrade/commands/list_commands.py
    freqtrade/commands/hyperopt_commands.py
    config_binance.json.example
    config_kraken.json.example
    freqtrade/enums/selltype.py

Did not look at these files
    freqtrade/plot/plotting.py
    freqtrade/plugins
    freqtrade/resolvers/strategy_resolver.py
    freqtrade/rpc

Already Edited
    freqtrade/persistence/migrations.py
    freqtrade/persistence/models.py