Format main method
rename "main" function by a more explicit name: "convert_ofx_amounts"
rename "rate_exchange" vars by "exchange_rate"
rename "ofx_to_ofx" function by "get_template_context"
Fix template path
Convert amount transactions in a new function
convert amount in a function
Format convert amount transaction with convert amount
Update ofxparse from 0.1 to 0.11
Add account_type in template
Add Transaction type in template
Add currency in template
convert date to ofx text
Add account_id in template
Format ofx_currency_converter.py