tools: added script to clean recycle bin for crontab

[Wine93]

What problem does this PR solve?

Problem Summary: Need a script to clean the recycle bin regularly

What is changed and how it works?

What's Changed: Added script.

How it Works: You can add this script to your crontab list to clean the recycle bin regularly, ex:

30 01 * * * /path/to/recylebin-clean -f -p 80 > /path/to/log

The above cron task means：

• Execute the clean task at 1:30 am every day
• Force clean recycle bin when get space information error (a large-capacity recycle bin may cause this error)
• Otherwise, the recycle bin will be cleaned only when the recyclable percentage is greater than 80%

Side effects(Breaking backward compatibility? Performance regression?): none

Check List

• Relevant documentation/comments is changed or added
• I acknowledge that all my contributions will be made under the project's license

[SeanHai]

if force=0 , but it is still failed, nothing to do? (for example use option" -p 80 ", but timeout occured at 50% )

[Wine93]

@SeanHai
yeap, if you want to clean cycle bin when an error occurred, you should specify -f option.

[SeanHai]

if percent > 100, set to 100

[Wine93]

@SeanHai done