Add Yara compilation

yara/.gitignore

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+yara/
+x64/

yara/README.md

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+Prerequisites
+==============
+
+Get YARA 3.6.0 sources:
+
+    git clone https://github.com/VirusTotal/yara.git -b v3.6.0
+
+
+YARA needs VisualStudio >= 2015 to compile.
+
+To build from Visual Studio:
+
+* open yara/windows/vs2015/yara.sln
+* build solution
+
+To build from command line and create distribution:
+
+   makedist.bat
+
+Note: as makedist.bat calls msbuild, this batch file must be launched
+from "Developer Command Prompt for VSxxxx" (command prompt for Visual
+Studio that has the right build environment)

yara/makedist.bat

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+
+call :buildAndCopy x64 Debug
+call :buildAndCopy x64 Release
+goto :eof
+
+:buildAndCopy
+setlocal
+set platform=%~1
+set configuration=%~2
+
+msbuild yara\windows\vs2015\libyara\libyara.vcxproj /t:rebuild /p:Platform=x64 /p:Configuration=Debug
+
+REM if not exist %platform%\%configuration%\include mkdir %platform%\%configuration%\include
+REM xcopy jansson\build\include\*.h %platform%\%configuration%\include /D /I /Y
+
+REM if not exist %platform%\%configuration%\lib mkdir %platform%\%configuration%\lib
+REM if %configuration% == Debug (
+REM    copy jansson\build\lib\%configuration%\jansson_d.lib %platform%\%configuration%\lib\jansson.lib
+REM ) else (
+REM    copy jansson\build\lib\%configuration%\jansson.lib %platform%\%configuration%\lib\jansson.lib
+REM )
+endlocal
+goto :eof
+
+
+
+