implement SNITCH_DISABLE feature #570

Job	Run time
Install Ubuntu GCC static Release	13s
Install Ubuntu GCC header-only Release	25s
Install Ubuntu GCC shared Release	14s
Ubuntu GCC Release	1m 52s
Ubuntu GCC Debug	1m 3s
Ubuntu GCC disabled Release	9s
Ubuntu GCC disabled Debug	9s
Ubuntu GCC noexcept Release	1m 1s
Ubuntu GCC noexcept Debug	44s
Ubuntu GCC notime Release	1m 12s
Ubuntu GCC notime Debug	55s
Ubuntu GCC nounity Release	1m 20s
Ubuntu GCC nounity Debug	55s
Ubuntu GCC header-only Release	1m 16s
Ubuntu GCC header-only Debug	49s
Ubuntu GCC shared Release	1m 17s
Ubuntu GCC shared Debug	52s
Ubuntu Clang Release	2m 8s
Ubuntu Clang Debug	54s
Ubuntu Clang noexcept Release	1m 6s
Ubuntu Clang noexcept Debug	49s
Windows 32 Release	3m 5s
Windows 32 Debug	2m 0s
Windows 64 Release	2m 49s
Windows 64 Debug	1m 50s
Windows 64 noexcept Release	3m 17s
Windows 64 noexcept Debug	1m 40s
Windows 64 shared Release	2m 47s
Windows 64 shared Debug	1m 49s
MacOS Release	41s
MacOS Debug	30s
MacOS noexcept Release	35s
MacOS noexcept Debug	28s
WebAssembly Release	3m 55s
WebAssembly Debug	1m 31s
WebAssembly noexcept Release	1m 27s
WebAssembly noexcept Debug	1m 12s
	48m 59s

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