Build SFML as a static library #316

Job	Run time
clang-format	14s
Windows MSVC Shared Release	1s
Windows MSVC Shared Debug	1s
Windows MSVC Static Release	1s
Windows MSVC Static Debug	1s
Windows ClangCL Shared Release	1s
Windows ClangCL Shared Debug	1s
Windows ClangCL Static Release	1s
Windows ClangCL Static Debug	1s
Windows Clang Shared Release	1s
Windows Clang Shared Debug	1s
Windows Clang Static Release	1s
Windows Clang Static Debug	1s
Linux GCC Shared Release	1s
Linux GCC Shared Debug	45s
Linux GCC Static Release	1s
Linux GCC Static Debug	1s
Linux Clang Shared Release	18s
Linux Clang Shared Debug	52s
Linux Clang Static Release	2m 1s
Linux Clang Static Debug	1m 27s
macOS Clang Shared Release	1s
macOS Clang Shared Debug	1s
macOS Clang Static Release	1s
macOS Clang Static Debug	1s
	5m 56s

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