Tests - beekeeper - commandline

Based on the issue #567 command line flags that will be covered are:

Application Command Line Options:

• help,
• version.

Application Options:

• backtrace,
• export_keys_wallet_name,
• export_keys_wallet_password,
• log_json_rpc,
• notifications_endpoint,
• unlock_timeout,
• wallet_dir,
• webserver_http_endpoint,
• webserver_thread_pool_size.