TinyGarble v0.2

This pre-release version includes netlist list generation, read netlist, evaluate netlist, garbled circuit (GC), and Oblivious Transfer (OT).
It still does not include synthesis library and OT integration with GC. The latter is a crucial component for security.

Updates:
-New directory structure
-Test
-cmake
-Oblivious Transfer, and Oblivious Transfer Extension
-A few bugs are fixed.