libb64: Base64 C Routines

From projects:

• https://github.com/gorb314/libb64
• http://libb64.sourceforge.net/ (latest CVS source from http://libb64.cvs.sourceforge.net/viewvc/libb64/)

LICENSE:

Public domain

Authors:

• Chris Venter (@gorb314)
• Christopher J. Brody (@brodybits)

Major changes:

• Use macro instead of function to encode each value
• Line breaks disabled in cencode.c by default
• Flatter include statements to make iOS build easier

Other versions:

• https://github.com/gorb314/libb64
• https://github.com/libb64/libb64