-Adedd function to resize array to Mallocator
-significant speed up for first time ID allocation by using resizeArray instead of makeArray
-fix: onUpdate called with zero length arrays
-call updateBlocks before updateEvents (it's more accurate behaviour)
-some minore fixes
-fixed meson.build for GDC
-fixed code do cross compiling to android
-fixed build with GCC (workaround)
-added little benchmark
-several small fixes
-updated meson build (demos building, working with GCC, LDC and DMD)
-added some meson options
-added ImGUI bind for OpenGL3