[loc] set log messages to use English locale

* This is done to ensure I can understand logs that are sent to me,
  even when a non English locale is used.
* Closes #188.
[loc] set chkdsk and format output to use English locale

* Also fix percentage not being displayed when using slow format
* Also use GetUserDefaultUILanguage() rather than GetUserDefaultLCID()
  to get the user preferred locale.
* Closes #189
[core] detect memory cards in card readers

* Also remove drives with no media from the list
* Closes #18