Cross-Platform (Win32, Linux) upto Hardware Texturing (scanline order, nearest sampling only)

[KaivalyaD]

Changelog

• Defined a new platform detection macro BUILD_PLATFORM_LINUX for clean conditional compilation
• Using only lower-case letters for all source/header filenames (for gcc, source filenames are case-sensitive)
• Using immintrin.h on linux and intrin.h on Windows
• Using conditional compilation to choose API and intrinsics (names, ABI, etc.)
• Changed the windows-specific path separator \ to the standard /
• Using the POSIX API instead of Win32 API (for ex. argv[0] instead of calling GetModuleFileNameA())
• Added a compiler option (-march=native) on linux enable some intrinsics (like _lcntz_u64)
• Using the .insn dot-directive to specify custom instructions instead of recompiling gcc
• Using TBB12 on linux as if it was installed using a package manager (thus, ignoring the supplied binaries)

Note: Arches and native kernels (like trax-kernel.exe) must be run from the directory where the datasets folder is located. This applies to both: Windows and Linux.