Delete uppercased file names

Windows issue with case sensitivity.
Make file names lowercase
Compile with Visual C++ (10/12)
Remove Borland C++ specific features

far
huge
_seg
interrupt
Rewrite InitDestPath and CheckForEpisodes
Replace memptr with void*
Replace id's memory management with malloc/free
Fix .gitignore
Fix Huffman decoding in cache manager
Rewrite page manager (id_pm.c)
Remove Borland C++ specific features

MK_FP
MK_SEG
MK_OFF
Fix LZH decoding
Replace int with short
Fix reading of a config file
Fix lightsource table
Add buffer to emulate VGA memory
Add SDL2 library
Use SDL2 integer types
Add GLEW library
Begin to rewrite id_vl.c with using OpenGL