truecrypt: Initial formula for version 7.1a

Free open-source disk encryption software with GUI and CLI intergaces.

This version is squashed version that includes the following changes:
 * minimize modifications and reduce embedded patch size significantly
   Now patch contain only Wx related changes.
 * convert PKCS to resource
 * Replace osxfuse and build related modifications in patch with few inreplaces.
 * Add fuse4x as conflict.
 * fix cmd-line version
 * add more information regarding upstream

Partially based on information from following resources:
1. http://www.nerdenmeister.org/2013/08/16/build-truecrypt-on-os-x-64-bit-with-hardware-acceleration
2. https://github.com/mxcl/homebrew/pull/10183