Smooth Font

*** This is a test version. This version may be unstable. ***

v2.0-alpha-5
- Added font style (bold and/or italic) setting.
- Added rescan function for external font folders. ([F5] key in Font Selection GUI)
- Changed to suppress tooltip display while pressing modifier key.
- Refixed the issue that incompatible font renderer could not be detected when launched with default font setting.
- Improved exception handling when texture loading fails.

v2.0-alpha-3
- Fixed an issue that the whole screen turns white when hitting mobs.
- Improved OpenGL state management.
- Fixed an issue that incompatible font renderer could not be detected when launched with default font setting.

v2.0-alpha-2
- Fixed an issue that text transparency was not reflected.
- Fixed an issue that shadows were misaligned for each character.
- Reduced coordinate calculation error when rendering.
- Refactored some of rendering methods.

v2.0-alpha-1
- Expanded font size adjustment range.
- Improved a font autosizing feature.
- Added an asynchronous initialization.
- Supported progress bar display during initialization.
- Improved character width error correction feature in normal precision mode.
- Recuded string width error between normal precision mode and high precision mode.
- Improved shadow adjustment.
- Improved OpenGL state management.
- Enhanced checking of availability of OpenGL functions.
- Lowered a OpenGL minimum requirement to v1.4.
- Reduced VRAM usage to 1/4 when using system fonts.
- Recuded VRAM usage when mipmap is disabled.
- Added a function to align in ascent-line.
- Removed a function to align in box-bottom.
- Added a function to transform character width.
- Removed the limitation of character width when autosizing is enabled.
- Readjusted some internal paramters to display half scaled font more clearly.
- Secondary font can now be selected even by shift + leftclicking.
- Improved memory usage display.
- Improved glyph images generation so that all glyphs are rendered appropriately without being cut off. Therefore, "Autosizing Samples" field has been removed from GUI.
- Reduced memory usage by optimizing size of glyph images according to size of fonts.