Optimize `text_style` using bit packing (#4363) #7912

Job	Run time
mingw (mingw64)	4m 7s
build (windows-2019, Win32, v142, 17, Debug)	1m 9s
mingw (ucrt64)	4m 17s
build (windows-2019, Win32, v142, 17, Release)	2m 14s
build (windows-2019, Win32, v142, 17, -DBUILD_SHARED_LIBS=ON, Debug)	1m 19s
build (windows-2019, Win32, v142, 17, -DBUILD_SHARED_LIBS=ON, Release)	2m 36s
build (windows-2019, x64, v141, 14, Debug)	1m 35s
build (windows-2019, x64, v141, 14, Release)	2m 28s
build (windows-2019, x64, v141, 17, Debug)	1m 40s
build (windows-2019, x64, v141, 17, Release)	2m 36s
build (windows-2019, x64, v142, 17, Debug)	1m 38s
build (windows-2019, x64, v142, 17, Release)	2m 27s
build (windows-2019, x64, v142, 17, -DBUILD_SHARED_LIBS=ON, Debug)	1m 10s
build (windows-2019, x64, v142, 17, -DBUILD_SHARED_LIBS=ON, Release)	1m 59s
build (windows-2019, x64, v142, 20, Debug)	1m 40s
build (windows-2019, x64, v142, 20, Release)	2m 37s
build (windows-2022, x64, v143, Debug, 20)	2m 23s
	37m 55s

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