add a lib for rendering text in sdl2 and rules to make in makefile

SDL2_ttf/external/harfbuzz/.ci/build-win32.sh

@@ -0,0 +1,28 @@
+#!/bin/bash
+set -e
+
+meson 	--cross-file=.ci/win32-cross-file.txt \
+	--wrap-mode=default \
+	-Dtests=disabled \
+	-Dcairo=enabled \
+	-Dcairo:fontconfig=disabled \
+	-Dcairo:freetype=disabled \
+	-Dcairo:dwrite=disabled \
+	-Dcairo:tests=disabled \
+	-Dglib=enabled \
+	-Dfreetype=disabled \
+	-Dgdi=enabled \
+	-Ddirectwrite=enabled \
+	win32build \
+	$@
+
+ninja -Cwin32build -j3 # building with all the cores won't work fine with CricleCI for some reason
+
+rm -rf win32build/harfbuzz-win32
+mkdir win32build/harfbuzz-win32
+cp win32build/util/hb-*.exe win32build/harfbuzz-win32
+find win32build -name '*.dll' -exec cp {} win32build/harfbuzz-win32 \;
+i686-w64-mingw32-strip win32build/harfbuzz-win32/*.{dll,exe}
+rm -f harfbuzz-win32.zip
+(cd win32build && zip -r ../harfbuzz-win32.zip harfbuzz-win32)
+echo "harfbuzz-win32.zip is ready."