Add driver for link E, so if people don't want to use zadig, they don't have to.

misc/drivers_for_WCH-LinkE/R0-1v3/README.txt

+This only works for the WCH LinkE in RISC-V mode.  If your programmer has the BLUE light ON shortly after boot your programmer is in ARM mode.
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+Please follow instructions here to convert your programmer to RISC-V mode from ARM mode.
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+Basically press-and-hold the ModeS button while plugging in the USB.
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+Once powered, it will store that to default.
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+The blue light should be OFF.
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+Once you are in RISC-V mode, you can install this driver by right-clicking on the driver and saying install.