strategy:turt1: add tracing logs for stable price methods

Add tracing logs for stable price methods to know what it is
happening at runtime.

Signed-off-by: Zhengwang Ruan <ruan.zhengwang@gmail.com>
strategy:turt1: fix exception caused by a typo

Fix exception caused by using a typo 'getgetClose'.

Signed-off-by: Zhengwang Ruan <ruan.zhengwang@gmail.com>
ctp:autopos: rename all position methods with Hungarian notation

1) Rename all position methods with Hungarian notation to keep
   consistency with other modules.
2) Update ctp.ctpParser and strategy.futures because of #1.

Signed-off-by: Zhengwang Ruan <ruan.zhengwang@gmail.com>
strategy:futures: add commentaries for arguments of methods

Add commentaries for arguments of methods.

Signed-off-by: Zhengwang Ruan <ruan.zhengwang@gmail.com>
ctp:autopos: add commentaries for arguments of methods

Add commentaries for arguments of methods.

Signed-off-by: Zhengwang Ruan <ruan.zhengwang@gmail.com>