[WIP] Strip logs in the release version

[JingMatrix]

For people who are interested in stripping logs, you may continue to work on this pull-request.
Based on LSPosed/LSPosed#2822, credited to @msvamp.

[BM570]

I know for sure that when you run getprop in a terminal on an unmodified Android device without touching its bootloader, without rooting, and without enabling developer options - then there are no properties starting with persist.log or persist.logd on the device. LSPosed creates them in the first place and then the app in question, stops working.
I made this PR only to make a provision to prevent LSPosed from touching these properties.

Originally posted by @msvamp in LSPosed/LSPosed#2822 (comment)

That makes the logging a detection vector, for apps to detect active LSPosed (an indicator of root). Needs to be bypassed this way, if user has apps that use this hideous thing to detect you.

What else needs to be done, or does it basically work?

[JingMatrix]

According to this comment, #14 (comment), it basically works.

[BM570]

Yes. Please merge :)

[BlueCat300]

No need to delete logs! They are needed for developing modules AND informing developers about errors in modules.

[JingMatrix]

@BlueCat300 It is only for release version. And if users want to report bugs, you may require them to use a debug version.