Release 0.2.1

Key Changes:

• Rename asset::ini to asset::readINI. Added asset::writeINI to allow for easily writing modified settings back to the .ini
• Sprites and clickables now hold a void * which can be used to refer back to custom data
• Fonts support both horizontal and vertical alignment
• util::getTimePoint and util::accurateSleep for time sensitive operations (using Windows' QueryPerformanceCounter)
• util::slotAllocator made available, used internally for sprite allocation and so on.
• jaw::sysinfo replaces jaw::properties::cpuid
• Added libs directory for useful optional includes
  • libs/profile.h is a simple profiler that rides on top of util::getTimePoint
  • libs/ui.h is a UI library that rides on the engine's sprite and clickable systems
• Added support for drawing hollow rects and ellipses
• Added sound::abc, an ABC notation parser and simple music synthesizer
• Added master and per-sound volume controls
• Added JAW_DBGPRINT macro for convenient console output in debug mode

Fixes:

• Fixed bugs that prevented hot relaunching the engine
• The engine now behaves correctly on systems with and without AVX2 capabilities whether REQUIRE_AVX2 is on or off
• Solved ID collision issues by using the slot allocator