- Always reset orders whether it was a filled, expired or manually
cancelled order detected
- Reset on partial fill (with % threshold, optional)
- Allow to define custom order expiration time
- Reset orders on market trade (optional)
- Reset orders on center price change threshold (optional)

- Also disable log message about correct orders to remove log noise
- Writing of a trade log entry is disabled because we cannot properly
distinguish an expired order from a filled one

Closes: Codaone#226, Codaone#270

…rs-reset-options

As described by @mikakoi:
The point of logging "Orders correct on market" is that it's used as a
status for the worker in the GUI.
In a case where the strategy is initialized but no action is required to
be done after it, a status message "Initializing Relative Orders" will
get stuck on the GUI and that will just confuse the user.

Code part is from 347eedf

Closes: Codaone#270

There are maybe old orders from previous run, so give a chance to them.

We still need to cancel old orders on startup when "Reset orders on
center price change" is active. We don't know what the center price was
before.

This is option is actually not needed because it's duplicating behavior
of "Reset on center price change" with "threshold = 0"

check_orders() are called from __init__(), so it will not work because
initial "self.last_check = now"