partial merge of the webgl branch This commit contains the new pas2c conversion tool, the pascal to c build structure and the opengl2 rendering backend. Patch reviewed by unC0Rr.

file(GLOB vertshaders *.vs)
file(GLOB fragshaders *.fs)

install(FILES
    ${vertshaders}
    ${fragshaders}
    DESTINATION ${SHAREPATH}Data/Shaders)